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#16
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Defragger and SSD defrag ?
Wolf,
I have no idea how the disk drive handled these differences. I know that my C64 "breadbox" stored the next sector number in the first two byte of the current one. Hence it also returned just 254 bytes per sector. When doing a sequential read it could therefore go and retrieve the next sector while waiting for the "current sector OK, give me the next" signal. Something which ofcourse wasn't possible when doing random access. The only really "major" thing I did with that drive was to get it to emulate subdirectories, I felt like quite something that it wanted to work for me. :-) The disk drive was a smart device, seen as destination and source of data by the OS, not as resource to be managed. Yup. And with the right instruction you could perform a drive-to-drive copy, leaving your 'puter free for other stuff. Not that you could do much without a drive, but thats a fully other problem. Regards, Rudy Wieser |
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#17
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Defragger and SSD defrag ?
On 5/8/2018 1:50 PM, I previously wrote in part:
As Wieser describes, defragging an SSD will not accomplish anything. By writing unnecessarily to the SSD, defragging can actually shorten the useful life of an SSD. I have a PNY SSD. From the PNY Web site's FAQ, I read: Do SSDs require defragging? No, it is not necessary or recommended to defrag an SSD. Since there are no physical disks, there is not need to organize the data in order to reduce seek time. SSDs have TRIM, which serves the same basic function to make your drive faster without subjecting the drive to the extra workload. Defragging an SSD will put undue wear and tear on the drive and may actually shorten its life. -- David E. Ross http://www.rossde.com/ First you say you do, and then you don't. And then you say you will, but then won't. You're undecided now, so what're you goin' to do? From a 1950s song That should be Donald Trump's theme song. He obviously does not understand "commitment", whether it is about policy or marriage. |
#18
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Defragger and SSD defrag ?
Wolf K wrote:
On 2018-05-09 11:34, NY wrote: "David E. Ross" wrote in message news Two actions are really meaningless for SSDs. The other action that is meaningless is erasing files. The writing needed to erase a file might fail to over-write that file. While the pointer to the file might be erased, the file contents remain untouched. Only a total erasure of the entire device could have any meaning. Details about this are at http://eraser.heidi.ie/. As with any storage device (whether SSD or HDD), when you erase or overwrite a file, you are not deleting the contents at that time; instead you are returning the "sectors" (to use HDD terminology) to a pool which can be used for a new/updated file at some time in the future. It still makes sense to erase files that are no longer needed, so as to free up space and for general housekeeping. But unless you overwrite all the unused sectors that are not allocated to files/folders (or erase the whole device, as you say), then there is the possibility that someone may be able to undelete the file - that applies to HDD as much as to SSD. So I'd say that defragging an SSD doesn't make sense, but erasing a file makes as much or as little sense for both HDD and SSD. Semantics alert: "Erase" = "Overwrite data" "Delete" = "Mark filename as Deleted, and mark sectors/clusters as Available" Best, You can do both if you want. You can do a defragmenter run first. Followed by a run of Sysinternals SDELETE with the -z option to zero white space. Then, there will be nothing for Recuva to find, and the file system will be in a "maximally recoverable" state in the event the partition header got erased or something. Scavenger file recovery programs work best, if the files were defragmented before the accident happened. I don't think anyone has that much of a disk fetish though. Paul |
#19
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Defragger and SSD defrag ?
NoonName wrote:
Posted in Win 7 because there is more activity there/here and most of you in the Win 7 group have or once had Win XP so are very knowledgeable regarding Win XP. Win XP group gets little attention. Read my original post. Defragger for HDD ! Answered: Piriform. Would defrag help for SSD ? Answered: minimally and possible too much wear. You all must be non native Martian speakers. So, SSD degree of success depends more on the PC chip set ! I have several Win XP Pro laptops that have Samsung SSDs installed. Samsung Magician tests and sets them up. It also identifies that capabilities of the SDD depending on the laptop's chip set. The same SSD will run much faster with "better" chip sets. These laptops are the same manufacturer, Fujitsu. No way of telling without just trying. In any case, all laptops with the model Samsung SSD run much better, faster and are reliable. (Plug for Samsung SSD) If interested, get the Samsung with the lifetime warranty, by paying a little more. One package includes a cable to do the HDD to SSD transfer. I am not in any way affiliated with Samsung, just a very happy Samsung SSD owner (installed in three laptops). Did you align the partition on it ? You might get some idea, by using PTEDIT32 and looking at the numbers involved. If a lot of the numbers on the right are divisible by 63, then you're probably not aligned optimally for WinXP. A way to align for free, was to use Macrium Reflect Free during cloning, which has an align choice box during the clone. (The seventh frame in this filmstrip, shows the alignment dialog) https://postimg.cc/image/soq5qlgrx/ Aligning is even useful on 512e drives being used on WinXP. Lucky for me, the last hard drive I got for WinXP was a 512n drive. If you need a hard drive today for WinXP, I recommend a 2TB drive from the WD Gold series, as they're the last 512n I know of. Paul |
#20
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Defragger and SSD defrag ?
"Good Guy" wrote in message
news On 09/05/2018 18:00, NoonName wrote: Win XP group gets little attention. Best thing is to avoid XP newsgroup completely; It is dead. Kaput!!!!!!!!!!! Nobody in their right mind should be using XP; If they are so fond of their old machines then they should install that crap called Linux. XP is not supported and it gets no monthly updates. I still have an XP PC which is used solely for digitising analogue videotapes to MPG, because its capture card (which isn't supported by later versions of Windows) gives much better results than more modern USB adaptors. But I don't connect it to the internet and I only transfer data (MPG files) via memory stick, so the chances of it becoming infected are infinitesimal. Otherwise, yes, XP is too risky nowadays. |
#21
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Defragger and SSD defrag ?
NY wrote:
I still have an XP PC which is used solely for digitising analogue videotapes to MPG, because its capture card (which isn't supported by later versions of Windows) gives much better results than more modern USB adaptors. But I don't connect it to the internet and I only transfer data (MPG files) via memory stick, so the chances of it becoming infected are infinitesimal. Otherwise, yes, XP is too risky nowadays. It's fine for offline usage. -- Quote of the Week: "Cheerios: Hula-hoops for ants." --unknown Note: A fixed width font (Courier, Monospace, etc.) is required to see this signature correctly. /\___/\ Ant(Dude) @ http://antfarm.home.dhs.org / /\ /\ \ Please nuke ANT if replying by e-mail privately. If credit- | |o o| | ing, then please kindly use Ant nickname and URL/link. \ _ / ( ) |
#22
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Defragger and SSD defrag ?
On 05/09/2018 12:20 PM, R.Wieser wrote:
[snip] Yup. And with the right instruction you could perform a drive-to-drive copy, leaving your 'puter free for other stuff. Not that you could do much without a drive, but thats a fully other problem. Regards, Rudy Wieser IIRC, for a dual drive you can use the command "D1=0". Once at a user group meeting a saw someone had a program that would allow multiple copies without connecting a computer (just once to load that program). You put the disk to copy in drive 0 and a blank disk in drive 1. It starts copying automatically. Drive lights show when it's done. You could even copy between units (including drive to printer) leaving the computer free, although the I/O bus would be unavailable to it. -- Mark Lloyd http://notstupid.us/ Why be born again, when you can just grow up? |
#23
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Defragger and SSD defrag ?
Mark,
IIRC, for a dual drive you can use the command "D1=0". In all my time with the C64 I've only seen a double-drive configuration a few times. And although I did fork over the money for that "breadbox" C64 drive because I got fed up rather fast with the casettes (always had to verfy the program - on a medium that was already slow - to be sure it would "stick". And I learned that the hard way. :-( ) Once at a user group meeting a saw someone had a program that would allow multiple copies without connecting a computer (just once to load that program) As you could upload-end-execute programs onto the drives themselves (which is what I did to get those "subdirectories" I spoke of earlier) I can easily imagine that. You could even copy between units ... Thats the only way I saw it done. ... leaving the computer free, although the I/O bus would be unavailable to it. I once or twice considered throwing something together that would effectivily create two seperate busses (a couple of 74xx open-collector driver chips would have done it), but as I never had the pleasure of having more than one device for that bus I had no reason to build it. Oh well. Regards, Rudy Wieser |
#24
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Defragger and SSD defrag ?
On 05/10/2018 02:01 PM, R.Wieser wrote:
Mark, IIRC, for a dual drive you can use the command "D1=0". In all my time with the C64 I've only seen a double-drive configuration a few times. And although I did fork over the money for that "breadbox" C64 drive because I got fed up rather fast with the casettes (always had to verfy the program - on a medium that was already slow - to be sure it would "stick". And I learned that the hard way. :-( ) I had (and, actually, still have) a MSD SD-2 dual drive. It would often fail because of the connector on the controller where the transformer secondary was connected. I finally fixed it (where the repair shop always failed), but by then I wasn't using the C64 much. [snip] -- Mark Lloyd http://notstupid.us/ "The belief in a supernatural source of evil is not necessary; men alone are quite capable of every wickedness" -- Joseph Conrad |
#25
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Defragger and SSD defrag ?
"David E. Ross"
news alt.windows7.general, wrote: On 5/8/2018 12:32 PM, NoonName wrote: 1) what is the best defragger that will handle Win XP with HDD ? 2) does a laptop with a SSD ever need defragging ? When ? Two actions are really meaningless for SSDs. As Wieser describes, defragging an SSD will not accomplish anything. By writing unnecessarily to the SSD, defragging can actually shorten the useful life of an SSD. The other action that is meaningless is erasing files. The writing needed to erase a file might fail to over-write that file. While the pointer to the file might be erased, the file contents remain untouched. That depends on the way in which you opted to delete the file. Using a secure file wiping utility (if properly written and implemented) will erase the file contents. Only a total erasure of the entire device could have any meaning. Details about this are at http://eraser.heidi.ie/. It's a site for a secure disk wiping utility. One of many which all do the same thing. It's not necessary to wipe the entire disk out to whack selected file(s). -- To prevent yourself from being a victim of cyber stalking, it's highly recommended you visit he https://tekrider.net/pages/david-brooks-stalker.php ================================================== = Cats must try to kill the curlicues of ribbon on the finished packages. |
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