From: Gabriele P. <co...@di...> - 2004-05-30 08:55:09
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Hi Bruce, first I want to thank for your rich documentation on smartmontools! second I want to give a notice about the following: The Document "Revision 1.4 of SFF-8055i "S.M.A.R.T. Applications Guide for the ATA and SCSI Interfaces" which one can download from the link ftp://ftp.ds2.pg.gda.pl/pub/macro/S.M.A.R.T./8055.PDF is broken. third I have a question: I would like to interprete the attribute report for my defect disc - Device Model: Maxtor 34098H4 Although you write in the article at the Linux Journal, that all "the names/meanings of Attributes and the interpretation are vendor specific" I hope that there is some documentation about general meanings, which possibly may differ for some vendors, but help me getting an idea for the thing, that is spoken about. Can you give some links to *background information* that help me understand the attributes? In my case, the error is: 5 Reallocated_Sector_Ct 0x0033 001 001 063 Pre-fail Always FAILING_NOW 637 I've got my data already copied to a new disc, but I am curious to learn what has happened in this case. Thanks for your support! Gabriele |
From: Mario 'B. H. <Mario.Holbe@RZ.TU-Ilmenau.DE> - 2004-06-01 11:07:55
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Gabriele Pohl <co...@di...> wrote: > In my case, the error is: > 5 Reallocated_Sector_Ct 0x0033 001 001 063 Pre-fail Always > FAILING_NOW 637 > but I am curious to learn what has happened in this case. Although I'm not Bruce... :) Newer disks usually have some unused sectors - sectors kept spare to put them in place if a used sector fails, i.e. writing or reading to that sector fails. Where 'unused' means, you cannot access them usually. This has nothing to do with unused partitions or unpartitioned disk areas. If a sector fails, the disk then redirects access to that failing sector to one of the spare sectors (kind of renaming). If writing fails, this is usually no problem - the write can just be redirected; if reading fails, you get either an error or erroneous data, because the data stored on this sector just got lost). The Reallocated_Sector_Ct indicates how often this did happen in the past. There are two reasons for monitoring this: 1st: There is only a limited amount of those spare sectors. If they are all in use once, there is no chance to replace further failing sectors. 2nd: Write or read-errors to sectors usually indicate physical damages on the disk. If they increase, this could be a sign that the disk is going to die soon. regards, Mario -- I thought the only thing the internet was good for was porn. -- Futurama |
From: Bruce A. <ba...@gr...> - 2004-06-01 15:05:24
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Mario answered this very well, so I don't have much to add. > 1st: There is only a limited amount of those spare sectors. > If they are all in use once, there is no chance to replace > further failing sectors. This is what has happened on your disk -- it's either used up all of its spare sectors (637 of them) or is very close to using up all of its spare sectors (for examples perhaps it has 640 spare sectors). If the disk is still under warranty the vendor will probably give you a replacement with no trouble -- just tell them that the SMART status is failing and given them 'smartctl -a' output. Cheers, Bruce On Tue, 1 Jun 2004, Mario 'BitKoenig' Holbe wrote: > Gabriele Pohl <co...@di...> wrote: > > In my case, the error is: > > 5 Reallocated_Sector_Ct 0x0033 001 001 063 Pre-fail Always > > FAILING_NOW 637 > > but I am curious to learn what has happened in this case. > > Although I'm not Bruce... :) > > Newer disks usually have some unused sectors - sectors > kept spare to put them in place if a used sector fails, > i.e. writing or reading to that sector fails. > Where 'unused' means, you cannot access them usually. This > has nothing to do with unused partitions or unpartitioned > disk areas. > If a sector fails, the disk then redirects access to that > failing sector to one of the spare sectors (kind of > renaming). > If writing fails, this is usually no problem - the write > can just be redirected; if reading fails, you get either > an error or erroneous data, because the data stored on > this sector just got lost). > > The Reallocated_Sector_Ct indicates how often this did > happen in the past. > > There are two reasons for monitoring this: > 1st: There is only a limited amount of those spare sectors. > If they are all in use once, there is no chance to replace > further failing sectors. > 2nd: Write or read-errors to sectors usually indicate > physical damages on the disk. If they increase, this could > be a sign that the disk is going to die soon. > > > > regards, > Mario > -- > I thought the only thing the internet was good for was porn. -- Futurama > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: Oracle 10g > Get certified on the hottest thing ever to hit the market... Oracle 10g. > Take an Oracle 10g class now, and we'll give you the exam FREE. > http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click > _______________________________________________ > Smartmontools-support mailing list > Sma...@li... > https://lists.sourceforge.net/lists/listinfo/smartmontools-support > > |
From: Bruce A. <ba...@gr...> - 2004-06-01 15:42:07
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Hi Gabriele, On Sun, 30 May 2004, Gabriele Pohl wrote: > Hi Bruce, > > first I want to thank for your rich documentation on smartmontools! You're welcome. Thanks for reading it! > second I want to give a notice about the following: The Document > "Revision 1.4 of SFF-8055i "S.M.A.R.T. Applications Guide for the ATA > and SCSI Interfaces" which one can download from the link > ftp://ftp.ds2.pg.gda.pl/pub/macro/S.M.A.R.T./8055.PDF is broken. I just used a link validator to check all the links in the document. They are all OK. I was able to get ftp://ftp.ds2.pg.gda.pl/pub/macro/S.M.A.R.T./8055.PDF: [ballen@lap ballen]$ wget ftp://ftp.ds2.pg.gda.pl/pub/macro/S.M.A.R.T./8055.PDF > 8055.pdf --10:39:04-- ftp://ftp.ds2.pg.gda.pl/pub/macro/S.M.A.R.T./8055.PDF => `8055.PDF.1' Resolving ftp.ds2.pg.gda.pl... done. Connecting to ftp.ds2.pg.gda.pl[153.19.208.2]:21... connected. Logging in as anonymous ... Logged in! ==> SYST ... done. ==> PWD ... done. ==> TYPE I ... done. ==> CWD /pub/macro/S.M.A.R.T. ... done. ==> PORT ... done. ==> RETR 8055.PDF ... done. Length: 524,827 (unauthoritative) 100%[===============================================================================>] 524,827 14.41K/s ETA 00:00 10:39:42 (14.41 KB/s) - `8055.PDF.1' saved [524827] Note that this is a rather slow server (12kB/sec, average) so be patient! > third I have a question: I would like to interprete the attribute report > for my defect disc - Device Model: Maxtor 34098H4 > Although you write in the article at the Linux Journal, that all "the > names/meanings of Attributes and the interpretation are vendor specific" > I hope that there is some documentation about general meanings, > which possibly may differ for some vendors, but help me getting > an idea for the thing, that is spoken about. > > Can you give some links to *background information* > that help me understand the attributes? I'm afraid that other than the pointers in the REFERENCES section I don't know where various Attributes are monitored. But I saw that Mario already answered your question about reallocated sector count. > In my case, the error is: > 5 Reallocated_Sector_Ct 0x0033 001 001 063 Pre-fail Always > FAILING_NOW 637 > > I've got my data already copied to a new disc VERY wise! > but I am curious to learn what has happened in this case. If the disk is still under warranty, Maxtor should replace it with no difficulty. > Thanks for your support! You're welcome! Bruce |