Re: RAID 1 Mismatches

2009-12-30 Thread Rick Wagner
On Tuesday 29 December 2009 10:17:32 pm Raman Gupta wrote: On 12/29/2009 03:18 PM, Rick Wagner wrote: On Tuesday 29 December 2009 06:27:27 am Michael Cronenworth wrote: Other replies also imply that this is common if you have swap or mmaped files on the MD. swap is on separate partitions,

Re: RAID 1 Mismatches

2009-12-30 Thread Michael Cronenworth
Eero Tamminen on 12/30/2009 04:09 AM wrote: Indeed, /var is on this volume, and lsof shows quite a number of mmaped files in /var/cache and /var/tmp. Thank you all for your help on this, I will relax now. Would you feel up to creating a bug against mdadm (the owner of 99-raid-check) and ask

Re: RAID 1 Mismatches

2009-12-29 Thread Michael Cronenworth
Rick Wagner on 12/28/2009 09:41 PM wrote: 1) Where can the errors be coming from? I would understand if a drive were reporting errors. Could it be during boot, one of the R-1 members is being written too before MD is started? If you have X running, you can start palimpset and view SMART

Re: RAID 1 Mismatches

2009-12-29 Thread Raman Gupta
On 12/29/2009 09:27 AM, Michael Cronenworth wrote: Rick Wagner on 12/28/2009 09:41 PM wrote: 1) Where can the errors be coming from? I would understand if a drive were reporting errors. Could it be during boot, one of the R-1 members is being written too before MD is started? If you have X

Re: RAID 1 Mismatches

2009-12-29 Thread Michael Cronenworth
Raman Gupta on 12/29/2009 11:24 AM wrote: The OP already said he didn't have any drive errors... Where? He said he scanned log files but didn't look at SMART info. Unless he has smartd running, he won't see any. No need to be condescending. -- fedora-list mailing list fedora-list@redhat.com

Re: RAID 1 Mismatches

2009-12-29 Thread Kevin Fenzi
On Mon, 28 Dec 2009 19:41:53 -0800 Rick Wagner rjwgn...@verizon.net wrote: I have three disks in my system, divided into a mix of RAID-1 and RAID-5 partitions. I have /boot as a RAID-1 on MD0 (SDA1, SDB1), / as RAID-1 on MD1 (SDA2, SDB2), and the remainder as RAID-5 with LVM (SDA3, SDB3,

Re: RAID 1 Mismatches

2009-12-29 Thread Rick Wagner
On Tuesday 29 December 2009 06:27:27 am Michael Cronenworth wrote: Rick Wagner on 12/28/2009 09:41 PM wrote: 1) Where can the errors be coming from? I would understand if a drive were reporting errors. Could it be during boot, one of the R-1 members is being written too before MD is

Re: RAID 1 Mismatches

2009-12-29 Thread Tony Nelson
On 09-12-29 15:18:48, Rick Wagner wrote: ... Thanks for the suggestions. I did not find 'palimpset', but used the sp. palimpsest your 'devkit' suggestion. Looking at the physical device entries (i.e. sd[abc][1234]?') did not show anything like error counts. I take that to mean there

Re: RAID 1 Mismatches

2009-12-29 Thread Raman Gupta
On 12/29/2009 12:29 PM, Michael Cronenworth wrote: Raman Gupta on 12/29/2009 11:24 AM wrote: The OP already said he didn't have any drive errors... Where? He said he scanned log files but didn't look at SMART info. Unless he has smartd running, he won't see any. No need to be condescending.

Re: RAID 1 Mismatches

2009-12-29 Thread Raman Gupta
On 12/29/2009 03:18 PM, Rick Wagner wrote: On Tuesday 29 December 2009 06:27:27 am Michael Cronenworth wrote: Other replies also imply that this is common if you have swap or mmaped files on the MD. swap is on separate partitions, but I suppose the system or service may have some mmaped files

RAID 1 Mismatches

2009-12-28 Thread Rick Wagner
I have three disks in my system, divided into a mix of RAID-1 and RAID-5 partitions. I have /boot as a RAID-1 on MD0 (SDA1, SDB1), / as RAID-1 on MD1 (SDA2, SDB2), and the remainder as RAID-5 with LVM (SDA3, SDB3, SDC3). The intent is that for boot and root, if SDA fails, I can boot off SDB.