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#16
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Enabling/Disabling write-caching on the system drive
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#17
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Enabling/Disabling write-caching on the system drive
"westom" wrote in message
... On Nov 12, 1:39 pm, "MerseyBeat" wrote: Secondly, I really can't imagine that aUPSwould fail any more frequently than the likelihood of the main electicity failing. If aUPSsaves any piece of expensive hardware or some very important data, then, it would seem to me, to be worth it's weight in gold. Reciting retail propaganda does not make a fact. If you knew that, then you also posted each electronics component damaged by a power failure. You cannot. You're right, I can't. I also cannot provide information about electronic components damaged by a UPS. Probably will not even try. Power failure does not cause hardware damage - except where hearsay is promoted as fact. I agree, power failures don't generally cause hardware damage. Power surges do. If a UPS does this hardware protection, then you posted the manufacturer spec numbers that makes that claim. Again you will not. Recited myths made so popular by hearsay and advertising is also not relevant to the OP's post. OP is asking about write-caching. Why are you posting lies that are also not relevant? A UPS has only one function. Temporary and 'dirty' power so that unsaved data can be saved. What is some of the 'dirtiest' power electronics see? Power from a UPS when in battery backup mode. 'Dirtiest' power also causes no damage due to superior protection already inside every computer. Facts you should have known. And that have no relationship to the OP's question about write caching. The apparent anger in your response has blinded your ability to comprehend the gyst of my conversation. I was not only discussing power failures but I also mentioned surges on the order of lightning strikes. I was not reponding to the OPs question about write caching, I was responding to pjp who noted that they have experienced multiple power failures. Do you agree that a power failure could cause you to lose unsaved data ? In that particular case, do you still reject the use of a UPS to provide enough power to allow you to save the data ? Also, I disagree with you. The UPS I use (manufactured by APC) has (per their claims) at least two functions. 1. To provide battery backup power (dirty or not) when AC voltage drops too low and 2. Surge supression from the likes of lightning strikes. choro - your concerns are relevant. Dirtiest electricity comes from a UPS in battery backup mode. Electricity so dirty as to even threaten small electric motors and power strip protectors. Even that dirtiest electricity made irrelevant by protection always inside computers - even the original IBM PC. The "protection always inside computers even the original IBM PC" is called a fuse. I as well as others would find it hard to believe that my computer is better able to handle a lighning strike than the UPS. You say it is? Yeah, it would handle it........by frying every electrical component and hardware device in it. Have you ever heard of individuals being electrocuted through their telephone lines when they were on the telephone and lightning struck ? I know, that is just retail propaganda by a manufacturer. As far as I'm concerned a $100 UPS is piece of mind for me whether it provides clean or dirty electricity. I'd rather have 10 minutes of crap electricity to save data then none at all and lose data !!! |
#18
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Enabling/Disabling write-caching on the system drive
"westom" wrote in message
... On Nov 12, 1:39 pm, "MerseyBeat" wrote: Secondly, I really can't imagine that aUPSwould fail any more frequently than the likelihood of the main electicity failing. If aUPSsaves any piece of expensive hardware or some very important data, then, it would seem to me, to be worth it's weight in gold. Reciting retail propaganda does not make a fact. If you knew that, then you also posted each electronics component damaged by a power failure. You cannot. Probably will not even try. Power failure does not cause hardware damage - except where hearsay is promoted as fact. If a UPS does this hardware protection, then you posted the manufacturer spec numbers that makes that claim. Again you will not. Recited myths made so popular by hearsay and advertising is also not relevant to the OP's post. OP is asking about write-caching. Why are you posting lies that are also not relevant? A UPS has only one function. Temporary and 'dirty' power so that unsaved data can be saved. What is some of the 'dirtiest' power electronics see? Power from a UPS when in battery backup mode. 'Dirtiest' power also causes no damage due to superior protection already inside every computer. Facts you should have known. And that have no relationship to the OP's question about write caching. choro - your concerns are relevant. Dirtiest electricity comes from a UPS in battery backup mode. Electricity so dirty as to even threaten small electric motors and power strip protectors. Even that dirtiest electricity made irrelevant by protection always inside computers - even the original IBM PC. Thanks a million. I've never used UPS and never really felt the need for one though I do use surge protectors. Don't know whether Belkin still do this particular model which also serves as a plinth to raise the monitor screen around a couple of inches from the desktop and which comes equipped with 4 to 5 electrical sockets at the back with on/off switches at the front + a master switch. What is more there is a thru unswitched power outlet which comes in handy for things like a phone that must not be switched off accidentally. I just use the master on/off switch to turn everything on or off in one go. Brilliant. I've got several of these plinth type Belkin Surge Masters. Use them for my hi-fi, in my bedroom for the alarm clock/radio, digital DAB radio, bedside lights, phone charger etc. Immensely practical. I'd recommend them highly to anybody. -- choro ***** |
#19
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Enabling/Disabling write-caching on the system drive
On Nov 12, 6:15 pm, "MerseyBeat" wrote:
I agree, power failures don't generally cause hardware damage. Power surges do. Reliable facilities earth a 'whole house' protector for many times less money. Your UPS does not even claim protection from surges. Again, spec numbers. No protection is defined. What does every facility do so that surges do no damage? Earth a 'whole house' protector. A system designed to earth even direct lightning strikes without damage - even to the protector. And for less money. Sun Microsystems says what a computer needs in "Planning guide for Sun Server room": Section 6.4.7 Lightning Protection: Lightning surges cannot be stopped, but they can be diverted. The plans for the data center should be thoroughly reviewed to identify any paths for surge entry into the data center. Surge arrestors can be designed into the system to help mitigate the potential for lightning damage within the data center. These should divert the power of the surge by providing a path to ground for the surge energy. What does the OP need for something he was not even asking for? An earthed ‘whole house’ protector. Not a UPS. That UPS has what - 400 joules - to magically make hundreds of thousands of joules disappear? No wonder so many make recommendations without numbers. A UPS does surge protection for the same reason that power outages corrupt disk drive data. Hearsay based in feelings and myths. OP's concern is write caching. UPS introduced only when someone recited popular urban myths. Even the manufacturer’s specification numbers were ignored. OP does not need a UPS for write caching or for other invented fears. UPS means time to save unsaved data. UPS does not answer any OP question. And does not even provide that hardware protection. A UPS is not even relevant to the OP's question - and does not do hardware protection that he was not asking about. If you need surge protection, then learn how it has been done for over 100 years. And why effective protectors are not adjacent to electronics. And is irrelevant to the OP’s write caching question. |
#20
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Enabling/Disabling write-caching on the system drive
On Nov 12, 6:26 pm, "choro" wrote:
Thanks a million. I've never usedUPSand never really felt the need for one though I do usesurgeprotectors. Don't know whether Belkin still do this Common factor even in replies for the OP. Where are the manufacturer specifications? Belkin does not claim to protect from typically destructive surges. How do its hundreds of joules magically absorb surges that are hundred of thousands of joules? It doesn't. Take a $3 power strip with the always required circuit breaker. Then add some ten cent protector parts. How much did you pay for the Belkin? Wouldn't you love to have that profit margin? Others 'need' a UPS because a data protection problem was eliminated decades ago. Why is that logical? Same applies to the Belkin. How does its 2 cm part stop what three miles of sky could not? How do its hundreds of joules make hundreds of thousands of joules magically disappear? This is how it should be done. Answer provided. Reasons for that answer provided. And numbers. |
#21
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Enabling/Disabling write-caching on the system drive
Moron.
"westom" wrote in message ... On Nov 12, 6:15 pm, "MerseyBeat" wrote: I agree, power failures don't generally cause hardware damage. Power surges do. Reliable facilities earth a 'whole house' protector for many times less money. Your UPS does not even claim protection from surges. Again, spec numbers. No protection is defined. What does every facility do so that surges do no damage? Earth a 'whole house' protector. A system designed to earth even direct lightning strikes without damage - even to the protector. And for less money. Sun Microsystems says what a computer needs in "Planning guide for Sun Server room": Section 6.4.7 Lightning Protection: Lightning surges cannot be stopped, but they can be diverted. The plans for the data center should be thoroughly reviewed to identify any paths for surge entry into the data center. Surge arrestors can be designed into the system to help mitigate the potential for lightning damage within the data center. These should divert the power of the surge by providing a path to ground for the surge energy. What does the OP need for something he was not even asking for? An earthed ‘whole house’ protector. Not a UPS. That UPS has what - 400 joules - to magically make hundreds of thousands of joules disappear? No wonder so many make recommendations without numbers. A UPS does surge protection for the same reason that power outages corrupt disk drive data. Hearsay based in feelings and myths. OP's concern is write caching. UPS introduced only when someone recited popular urban myths. Even the manufacturer’s specification numbers were ignored. OP does not need a UPS for write caching or for other invented fears. UPS means time to save unsaved data. UPS does not answer any OP question. And does not even provide that hardware protection. A UPS is not even relevant to the OP's question - and does not do hardware protection that he was not asking about. If you need surge protection, then learn how it has been done for over 100 years. And why effective protectors are not adjacent to electronics. And is irrelevant to the OP’s write caching question. |
#22
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Enabling/Disabling write-caching on the system drive
"choro" wrote in message
... "westom" wrote in message ... On Nov 12, 1:39 pm, "MerseyBeat" wrote: Secondly, I really can't imagine that aUPSwould fail any more frequently than the likelihood of the main electicity failing. If aUPSsaves any piece of expensive hardware or some very important data, then, it would seem to me, to be worth it's weight in gold. Reciting retail propaganda does not make a fact. If you knew that, then you also posted each electronics component damaged by a power failure. You cannot. Probably will not even try. Power failure does not cause hardware damage - except where hearsay is promoted as fact. If a UPS does this hardware protection, then you posted the manufacturer spec numbers that makes that claim. Again you will not. Recited myths made so popular by hearsay and advertising is also not relevant to the OP's post. OP is asking about write-caching. Why are you posting lies that are also not relevant? A UPS has only one function. Temporary and 'dirty' power so that unsaved data can be saved. What is some of the 'dirtiest' power electronics see? Power from a UPS when in battery backup mode. 'Dirtiest' power also causes no damage due to superior protection already inside every computer. Facts you should have known. And that have no relationship to the OP's question about write caching. choro - your concerns are relevant. Dirtiest electricity comes from a UPS in battery backup mode. Electricity so dirty as to even threaten small electric motors and power strip protectors. Even that dirtiest electricity made irrelevant by protection always inside computers - even the original IBM PC. Thanks a million. I've never used UPS and never really felt the need for one though I do use surge protectors. Don't know whether Belkin still do this particular model which also serves as a plinth to raise the monitor screen around a couple of inches from the desktop and which comes equipped with 4 to 5 electrical sockets at the back with on/off switches at the front + a master switch. What is more there is a thru unswitched power outlet which comes in handy for things like a phone that must not be switched off accidentally. I just use the master on/off switch to turn everything on or off in one go. Brilliant. I've got several of these plinth type Belkin Surge Masters. Use them for my hi-fi, in my bedroom for the alarm clock/radio, digital DAB radio, bedside lights, phone charger etc. Immensely practical. I'd recommend them highly to anybody. -- choro ***** My guess is that you never used a UPS or felt the need for one because you've never lost data to a power failure. Try this: 1. Work on your computer and spend 2 hours on important data. 2. Trip the circuit breaker to the computer 3. Wipe the tears from your face because you just lost important data as well as 2 hours work you will have to redo. 4. Now wonder why you didn't have a UPS to give you time to save your data. Surge protectors alone won't do that. Westom offers a very, very weak argument not to have a UPS. It seems that he(she) is even against surge protectors. Are you willing to give up your surge protector because of westcom's remarks ? Would you still recommend them given westcom's remarks. MB |
#23
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Enabling/Disabling write-caching on the system drive
"westom" wrote in message
... On Nov 12, 6:26 pm, "choro" wrote: Thanks a million. I've never usedUPSand never really felt the need for one though I do usesurgeprotectors. Don't know whether Belkin still do this Common factor even in replies for the OP. Where are the manufacturer specifications? Belkin does not claim to protect from typically destructive surges. How do its hundreds of joules magically absorb surges that are hundred of thousands of joules? It doesn't. Take a $3 power strip with the always required circuit breaker. Then add some ten cent protector parts. How much did you pay for the Belkin? Wouldn't you love to have that profit margin? Others 'need' a UPS because a data protection problem was eliminated decades ago. Why is that logical? Same applies to the Belkin. How does its 2 cm part stop what three miles of sky could not? How do its hundreds of joules make hundreds of thousands of joules magically disappear? This is how it should be done. Answer provided. Reasons for that answer provided. And numbers. I get your point. But as far as I am concerned the Belkin plinth is a very practical and logically laid out "strip" (extension socket in the UK) with anti-surge protection thrown in. You get the actual specs with the strip and Belkin have got various levels of surge protection. To be honest, the anti-surge capabilities do not much interest me but I'd still recommend the Belkin plinth type Surge Master for its sheer practicality. I paid £8 for mine (US$12) and I think I got my money's worth. I could hardly have bought a normal strip with individually switched sockets for that much. I am certainly not complaining though I don't know about people who paid the full whack £60 ( = US$90!!!) when this model first came out. The blob says it will sacrifice itself to save your equipment. And to be honest I wouldn't be sorry if my equipment went up in smoke in the case of a lightning strike as they provide a free insurance for any equipment connected to a Belkin Power Surge. (Even though I wouldn't really trust the insurance company to cough up the sum. They are masters of evading paying out claims. To me insurance companies are the biggest crooks in the world!) Yes, I must say that I always had my doubts how such a flimsy electrical circuit could stop the effects of a direct lightning strike which would probably bring the roof down! ;-) But in life we have got to learn to take things with a pinch of salt! Still any protection is better than none at all. Would you agree on this score? -- choro ***** |
#24
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Enabling/Disabling write-caching on the system drive
westom wrote:
On Nov 12, 4:50 pm, Patok wrote: That's simply not true, on both counts. It is /not/ for protecting unsaved data (it does that too, but it is a side effect, not the reason d'etre). It is for being able to work uninterrupted through short power outages (like most tend to be), and for proper system shutdown when the power outage is long. Which is also called time to save unsaved data. No, not the way I use it. Your fixation on saving unsaved data is pathetic. /I/ don't use it for that. I use it to turn my desktop into a laptop, so that occasional power breaks of less than 15 minutes don't make me stop whatever I'm doing. In addition, (as probably every advanced user should do), my internet is powered by the UPS too, so if I'm doing something online, and the power interruption is local, I don't have to stop that either. And the low-power desk lamp is powered off the same. If /you/ chose to still live in the dark ages, it's not my problem. As to the hardware protection - you're wrong again. My UPS has en explicitly stated warranty of $50,000 connected equipment if it should be damaged by a surge/strike. While maybe it won't perform any better than the equipment itself, it is a nice insurance to have around. While your main objection that the UPS will not make any difference as to write caching is quite valid, and answers the OP's question, using the UPS will eliminate any need to even think about it as a problem. Please learn how a normal user uses UPS. Please learn how a typical UPS works. When not in battery backup mode, then the UPS connects a computer to cleanest electricity - AC mains. How does that relay inside a UPS stop destructive voltage increases? It doesn't. But the myth sells a UPS to many who do not ask damning technical questions. And who also ignore manufacturer spec numbers. In the 1970s, design standards required 120 volt electronics to withstand voltage increases up to 600 volts without damage. Today, those numbers for computers are even higher. You knew these numbers before posting? No? How often are you replacing dimmer switches, digital clocks, dishwasher, and your furnace due to these voltage increases? You are not. Excessive voltages are myths that promote retail sales. If destructive voltages exist, then you are replacing bathroom GFCIs daily. So what does that UPS protect from? Junk science fabrications? UPS outputs some of the 'dirtiest' power a computer will see. Power that can harm small electric motors and power strip protectors is still ideal perfect power to all computers. Computers are more robust. Meanwhile, these UPS protection fables are irrelevant to the OP's question about write caching. That unsound concern is also solved by the filesystem. -- You'd be crazy to e-mail me with the crazy. But leave the div alone. -- Whoever bans a book, shall be banished. Whoever burns a book, shall burn. |
#25
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Enabling/Disabling write-caching on the system drive
"MerseyBeat" wrote in message
... "choro" wrote in message ... "westom" wrote in message ... On Nov 12, 1:39 pm, "MerseyBeat" wrote: Secondly, I really can't imagine that aUPSwould fail any more frequently than the likelihood of the main electicity failing. If aUPSsaves any piece of expensive hardware or some very important data, then, it would seem to me, to be worth it's weight in gold. Reciting retail propaganda does not make a fact. If you knew that, then you also posted each electronics component damaged by a power failure. You cannot. Probably will not even try. Power failure does not cause hardware damage - except where hearsay is promoted as fact. If a UPS does this hardware protection, then you posted the manufacturer spec numbers that makes that claim. Again you will not. Recited myths made so popular by hearsay and advertising is also not relevant to the OP's post. OP is asking about write-caching. Why are you posting lies that are also not relevant? A UPS has only one function. Temporary and 'dirty' power so that unsaved data can be saved. What is some of the 'dirtiest' power electronics see? Power from a UPS when in battery backup mode. 'Dirtiest' power also causes no damage due to superior protection already inside every computer. Facts you should have known. And that have no relationship to the OP's question about write caching. choro - your concerns are relevant. Dirtiest electricity comes from a UPS in battery backup mode. Electricity so dirty as to even threaten small electric motors and power strip protectors. Even that dirtiest electricity made irrelevant by protection always inside computers - even the original IBM PC. Thanks a million. I've never used UPS and never really felt the need for one though I do use surge protectors. Don't know whether Belkin still do this particular model which also serves as a plinth to raise the monitor screen around a couple of inches from the desktop and which comes equipped with 4 to 5 electrical sockets at the back with on/off switches at the front + a master switch. What is more there is a thru unswitched power outlet which comes in handy for things like a phone that must not be switched off accidentally. I just use the master on/off switch to turn everything on or off in one go. Brilliant. I've got several of these plinth type Belkin Surge Masters. Use them for my hi-fi, in my bedroom for the alarm clock/radio, digital DAB radio, bedside lights, phone charger etc. Immensely practical. I'd recommend them highly to anybody. -- choro ***** My guess is that you never used a UPS or felt the need for one because you've never lost data to a power failure. Try this: 1. Work on your computer and spend 2 hours on important data. 2. Trip the circuit breaker to the computer 3. Wipe the tears from your face because you just lost important data as well as 2 hours work you will have to redo. 4. Now wonder why you didn't have a UPS to give you time to save your data. Surge protectors alone won't do that. Westom offers a very, very weak argument not to have a UPS. It seems that he(she) is even against surge protectors. Are you willing to give up your surge protector because of westcom's remarks ? Would you still recommend them given westcom's remarks. MB I have just responded to Weston. You can read my answer to him about Surge Protectors. Yes, I'd still buy them and recommend them, particularly the ultra-practical Belkin model I have got, because any protection no matter how weak is better than none. And they hardly cost more than non-Surge types of strips with individually switched sockets these days. But AS strips were certainly way overpriced when they first appeared on the market years ago. I can see your point re UPS. But living in the UK I'd still not buy one unless my life depended on it. And then I'd buy the best one I could with specs far above my requirements. I'd look for a factor of at least 3x to 5x over my needs. And here I am talking in addition to the manufacturer's margins. I know that price doesn't always relate to quality but I'd certainly try to buy a quality product. I don't believe in being tight-fisted where things one is going to use for years and years are concerned. And I can well imagine some cheap and nasty UPS units with no other merits except low prices. That, as far as I am concerned, is false economy. This computer that I am using is still going strong ten years after I built it and it will probably outlast a good many of the brand new desktops and laptops being sold today. Simply because it was built using quality components. And in ten years it has only needed two or three fan replacements. I have very recently built a new desktop, a "Speed Demon", as somebody has called it and again I have used all quality components. Buying cheap components is false economy. The same applies to UPS units. I hope I have made my thinking on this matter clear. -- choro ***** |
#26
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Enabling/Disabling write-caching on the system drive
"MerseyBeat" wrote in message ... "pjp" wrote in message ... I thought the point I was making/asking was it seems irrelevant when the write actually happens as there's no way to avoid the possibility of power failure at that time. Given that, might as well go with performance mode so to speak. As I live in very rural area, I've had many power failures. Usually only the file I might have been editing gets corrupted. I've had as many hardware issues because of it. Last one lost a video card and hard disk started becoming suspect also. Laptops kinda nice for avoiding that kinda problem as they seem to switch fast enough to battery. Don't you have an uninterruptible power supply (UPS)? It's enitre purpose is power failures and surge protection. It would (almost) eliminate the possibility of losing hardware or data. MB Nope, had one awhile ago but it was a very old very heavy duty job not used at work. Found out why, damn thing had the loudest hum. I took it back to shop after just few days. Kinda wish I'd kept it because could have always put it "someplace else" and run power from it to where needed. Biggest problem here is the number of pc's scattered thru house has been as many as 9 at any one time, across three floors. Makes just one affordable ups not meet needs. Easier to just use laptop during storms etc. and well can't do much about someone taking out a lamppole at times. I'll add that when the power goes out is not usually the problem for most things. Seems to be when it comes back on and more specifically when they try to have it come on but it goes off to come back on to go off cycle a few times is the biggest problem times. Have lost VCR's, DVD players, TV over the years. Seems more prevalent now that things aren't ever really turned off anymore. |
#27
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Enabling/Disabling write-caching on the system drive
I Have Smart-UPS on my Web-Server Why? http://www.apc.com/index.cfm Is for CC not PC A Pc is or home Computer Right! And CC is a? Computer When running a Networking or Web-Server Computer you have to have a UPS. So the system will not shutdown. Just To keep the News data running to your home Computer until I get that Power on my Web-Server Computer! So you can read the Re Subject: UPS Management Software, network management cards, and peripherals for UPS management and safe system shutdown! So westom you 50% right here. But all the Info is better 1/2 of it! .. http://mynews.ath.cx/doc/winsys/ |
#28
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Enabling/Disabling write-caching on the system drive
On Nov 12, 8:27 pm, Patok wrote:
As to the hardware protection - you're wrong again. MyUPShas en explicitly stated warranty of $50,000 connected equipment if it should be damaged by a surge/strike. While maybe it won't perform any better than the equipment itself, it is a nice insurance to have around. You described a UPS doing its only function is - to save unsaved data. It provides temporary and dirty power (15 minutes). To protect unsaved data. Why are you arguing this while agreeing with me? That warranty demonstrates that lying is legal. Did you read the many fine print exemptions? One APC exemption said any protector from any other manufacturer in the building voids their warranty. These many exemptions so that a warranty will not be honored. Manufacturer protection specs again were not posted for one glaring reason. You could not find what does not exist. Obviously. Missing is an always required 'less than 3 meter' connection to earth. Specifications make no effective protection claims. It does output dirtiest power 15 minutes (or less) to protect data – its only purpose. Which does nothing for write caching and why the UPS should have never been mentioned. Will you find those spec numbers? Or just post more hearsay denials? A majority believe obscene myths such as that $50,000 warranty. Please read fine print exemptions. Or read so many other's frustrations to submit a claim. Where does it list protection from each type of surge? Read numeric specifications. Not quoted here for one glaring reason. It only does protection when naive consumers recite what they are told to believe. When they do not ask damning questions. When they ignore numeric specs which you still do not post. |
#29
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Enabling/Disabling write-caching on the system drive
On Nov 12, 8:13*pm, "choro" wrote:
The blob says it will sacrifice itself to save your equipment. And to be honest I wouldn't be sorry if my equipment went up in smoke in the case of a lightningstrike as they provide a free insurance for any equipment connected to a Belkin PowerSurge. (Even though I wouldn't really trust the insurance company to cough up the sum. They are masters of evading paying out claims. To me insurance companies are the biggest crooks in the world!) Appreciate what happens when an ineffective protector fails - but its emergency disconnect circuit does not disconnect protector circuits fast enough. Scary pictures: http://www.hanford.gov/rl/?page=556&parent=554 http://www.ddxg.net/old/surge_protectors.htm http://www.zerosurge.com/HTML/movs.html http://tinyurl.com/3x73ol where **** are t i n y u r l and is entitled "Surge Protector Fires" http://www3.cw56.com/news/articles/local/BO63312/ http://www.nmsu.edu/~safety/news/les...tectorfire.htm http://www.pennsburgfireco.com/fullstory.php?58339 The Belkin warranty is reams of find print exemptions. Consumers quickly learn that a big buck warranty is often attached to the most inferior products. For example, GM is promoting warranties far superior to anything from Honda, Toyota, or Hyundai. Does that prove GM products are better? No. That suggests that GM products are inferior. Or learn from other's experiences. Newsman in "SONY TiVo SVR-2000" described jumping through many hoops to have that claim repeatedly rejected. He summarized that Belkin warranty in his last sentence: [quote]Eventually it boiled down to a line in the warranty that said "Belkin at it's sole discretion can reject any claim for any reason".[/ quote] MersyBeat apparently did not grasp what was posted. The UPS has one function. To provide temporary and dirty power. So that unsaved data can be saved. Hardware protection is implemented elsewhere and for less money. Neither that Belkin nor UPS do or claim to provide that hardware protection. And both are relevant to write caching for a hard drive. Remove combustible materials adjacent to that Belkin. Or earth a 'whole house' protector to protect that Belkin and everything else. |
#30
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Enabling/Disabling write-caching on the system drive
i have write caching off - still works fine (made windows more reliable
than it was in dos days). With laptops power failure is not an issue with good battery. On 12/11/2010 06:20, Tim Meddick wrote: However - there is that small risk with fixed disks (your hard-drives), with write-caching turned on, that data would be lost if there was a sudden power failure.... But the benefits , I think, do outweigh that small risk. == Cheers, Tim Meddick, Peckham, London. :-) "pjp" wrote in message ... Leave it on for anything permanent, e.g. internal hard disks. Turn it off for anything removable. That way you can disconnect it without (supposedly) risking data corruption with info hasn't been written yet. "Bill in Co" wrote in message m... Has anybody had any first hand experience with this? I've read the pro's and con's about enabling/disabling hard disk write caching, but it would be good to actually hear about some real cases, and not just the theoretical concerns, especially for something as fundamental as the main system drive. |
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