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#16
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Delayed Write Failed - could I have lost data?
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#17
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Delayed Write Failed - could I have lost data?
On Oct 19, 10:46*am, "Rod Speed" wrote:
That chkdsk output seems to indicate the drive only had minor inconsistencies and problems with security descriptors. It doesn't say anything about data errors. Is it possible that I still lost data on the drive? Not if the files you copied are visible. You mean it isn't possible for a file to still exist and have a few corrupted or missing bits - it's either there and completely intact, or it's corrupted and totally gone? |
#18
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Delayed Write Failed - could I have lost data?
On Oct 19, 10:46*am, "Rod Speed" wrote:
That chkdsk output seems to indicate the drive only had minor inconsistencies and problems with security descriptors. It doesn't say anything about data errors. Is it possible that I still lost data on the drive? Not if the files you copied are visible. You mean it's not possible for a file to still be there and have a few corrupted/missing bits - it's either there and completely intact, or corrupted and totally gone? |
#19
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Delayed Write Failed - could I have lost data?
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#20
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Delayed Write Failed - could I have lost data?
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#22
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Delayed Write Failed - could I have lost data?
In comp.sys.ibm.pc.hardware.storage wrote:
On Oct 19, 10:46?am, "Rod Speed" wrote: That chkdsk output seems to indicate the drive only had minor inconsistencies and problems with security descriptors. It doesn't say anything about data errors. Is it possible that I still lost data on the drive? Not if the files you copied are visible. You mean it isn't possible for a file to still exist and have a few corrupted or missing bits - it's either there and completely intact, or it's corrupted and totally gone? Usually you can get 1) missing file 2) present file partial data (anuthing between 0 Bytes there and the last byte missing) 3) full data. What you typically cannot get is corrypted data. It either is there and correct or (partially) missing. Of course, if you edited a file, the edits can be partially missing either in cronological order or in sequence from the start of the file, depending on the editors update strategy. Arno -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans |
#23
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Delayed Write Failed - could I have lost data?
John John MVP wrote: The data was in the write cache, it wasn't flushed to the disk so it was lost when the computer was rebooted. Why the hell doesn't Windows flush the write cache when it goes into hibernation? -- Reply in group, but if emailing add one more zero, and remove the last word. |
#24
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Delayed Write Failed - could I have lost data?
In comp.sys.ibm.pc.hardware.storage Tom Del Rosso wrote:
John John MVP wrote: The data was in the write cache, it wasn't flushed to the disk so it was lost when the computer was rebooted. Why the hell doesn't Windows flush the write cache when it goes into hibernation? While I think the Windows is (still) at best a toy, in all fairness if the disk refuses to take data, flushing the write-buffer (no, it is not a cache) is impossible. Arno -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans |
#25
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Delayed Write Failed - could I have lost data?
Tom Del Rosso wrote
John John MVP wrote The data was in the write cache, it wasn't flushed to the disk so it was lost when the computer was rebooted. Why the hell doesn't Windows flush the write cache when it goes into hibernation? It does. It can also write some status stuff to the drive before hibernating and can shut down too quickly before it gets written to the drive, particularly if there is some delay writing that status stuff to the druve. |
#26
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Delayed Write Failed - could I have lost data?
Arno wrote: In comp.sys.ibm.pc.hardware.storage Tom Del Rosso wrote: John John MVP wrote: The data was in the write cache, it wasn't flushed to the disk so it was lost when the computer was rebooted. Why the hell doesn't Windows flush the write cache when it goes into hibernation? While I think the Windows is (still) at best a toy, in all fairness if the disk refuses to take data, flushing the write-buffer (no, it is not a cache) is impossible. Does the disk refuse because it has to spin up first? Windows should be able to delay the shutdown in that case. -- Reply in group, but if emailing add one more zero, and remove the last word. |
#27
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Delayed Write Failed - could I have lost data?
On 10/25/2011 11:39 PM PT, Tom Del Rosso typed:
The data was in the write cache, it wasn't flushed to the disk so it was lost when the computer was rebooted. Why the hell doesn't Windows flush the write cache when it goes into hibernation? Why the frak do we have write cache? Is it for speed? -- "Ants can lift up to 50 times their own weight. And your monitor is missing. Time to bring out the bugspray." --BBspot's Geek Horoscopes (2/28/2003) /\___/\ Ant @ http://antfarm.ma.cx (Personal Web Site) / /\ /\ \ Ant's Quality Foraged Links: http://aqfl.net | |o o| | \ _ / If crediting, then use Ant nickname and AQFL URL/link. ( ) If e-mailing, then axe ANT from its address if needed. Ant is currently not listening to any songs on this computer. |
#28
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Delayed Write Failed - could I have lost data?
Rod, looks like you're right about the data being fine and it was just
a weird hibernation glitch. Since I had gotten a "delayed write failed" error, I just assumed that the drive's policy was set to "Optimize for performance". Then right after I started this thread, I went out of town for over a week with my work laptop, so I couldn't check my personal laptop. Now I'm finally home and was able to check on what the policy was set to - it is set to "Optimize for quick removal", which means the data must have been written correctly. |
#29
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Delayed Write Failed - could I have lost data?
Ant wrote
Tom Del Rosso wrote The data was in the write cache, it wasn't flushed to the disk so it was lost when the computer was rebooted. Why the hell doesn't Windows flush the write cache when it goes into hibernation? It does. Why the frak do we have write cache? Is it for speed? Yep. Otherwise you'd have to wait till the sector you are writing to moves under the heads etc. |
#30
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Delayed Write Failed - could I have lost data?
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