Re: raid1 error handling and faulty drives

2007-09-07 Thread Mike Accetta
the brainspace it deserves as I am travelling this fortnight. Looking forward to further discussion. Thank you! -- Mike Accetta ECI Telecom Ltd. Transport Networking Division, US (previously Laurel Networks) - To unsubscribe from this list: send the line unsubscribe linux-raid in the body of a message

raid1 error handling and faulty drives

2007-09-05 Thread Mike Accetta
even better approach. Mike Accetta ECI Telecom Ltd. Transport Networking Division, US (previously Laurel Networks) --- diff -Naurp 2.6.20/drivers/md/md.c kernel/drivers/md/md.c --- 2.6.20/drivers/md/md.c 2007-06-04 13:52:42.0 -0400 +++ kernel/drivers/md/md.c 2007-08-30 16:28

Re: detecting read errors after RAID1 check operation

2007-08-17 Thread Mike Accetta
); } else { -- Mike Accetta ECI Telecom Ltd. Transport Networking Division, US (previously Laurel Networks) - To unsubscribe from this list: send the line unsubscribe linux-raid in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html

detecting read errors after RAID1 check operation

2007-08-15 Thread Mike Accetta
report all errors, not just the corrected ones. Does this seem reasonable? Are there other alternatives that might make sense here? -- Mike Accetta ECI Telecom Ltd. Transport Networking Division, US (previously Laurel Networks) - To unsubscribe from this list: send the line unsubscribe linux-raid

Re: detecting read errors after RAID1 check operation

2007-08-15 Thread Mike Accetta
understanding of how this all works, neither of these paths would seem to apply here. -- Mike Accetta ECI Telecom Ltd. Transport Networking Division, US (previously Laurel Networks) - To unsubscribe from this list: send the line unsubscribe linux-raid in the body of a message to [EMAIL PROTECTED

Re: deliberately degrading RAID1 to a single disk, then back again

2007-06-27 Thread Mike Accetta
you mean to not even bring up the disk as a degraded array? If all you do is fail and remove the partition, RAID is actually still running to manage the single remaining partition, but I would expect that overhead to be minimal. -- Mike Accetta ECI Telecom Ltd. Transport Networking Division, US

Re: When does a disk get flagged as bad?

2007-05-30 Thread Mike Accetta
knowledgeable will comment soon. -- Mike Accetta ECI Telecom Ltd. Data Networking Division (previously Laurel Networks) - To unsubscribe from this list: send the line unsubscribe linux-raid in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html

raid1 check/repair read error recovery in 2.6.20

2007-05-24 Thread Mike Accetta
; + } if (j = 0) mddev-resync_mismatches += r1_bio-sectors; if (j 0 || test_bit(MD_RECOVERY_CHECK, mddev-recovery)) { -- Mike Accetta ECI Telecom Ltd. Data Networking Division (previously Laurel Networks) - To unsubscribe

Re: Partitioned arrays initially missing from /proc/partitions

2007-04-23 Thread Mike Accetta
); + } } } break; -- Mike Accetta ECI Telecom Ltd. Data Networking Division (previously Laurel Networks) - To unsubscribe from this list: send the line unsubscribe linux-raid in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo

Re: RAID1, hot-swap and boot integrity

2007-03-05 Thread Mike Accetta
Gabor Gombas wrote: On Fri, Mar 02, 2007 at 09:04:40AM -0500, Mike Accetta wrote: Thoughts or other suggestions anyone? This is a case where a very small /boot partition is still a very good idea... 50-100MB is a good choice (some initramfs generators require quite a bit of space under /boot

Re: RAID1, hot-swap and boot integrity

2007-03-05 Thread Mike Accetta
Bill Davidsen wrote: Gabor Gombas wrote: On Fri, Mar 02, 2007 at 09:04:40AM -0500, Mike Accetta wrote: Thoughts or other suggestions anyone? This is a case where a very small /boot partition is still a very good idea... 50-100MB is a good choice (some initramfs generators require

Re: RAID1, hot-swap and boot integrity

2007-03-05 Thread Mike Accetta
H. Peter Anvin wrote: Mike Accetta wrote: I've been considering trying something like having the re-sync algorithm on a whole disk array defer the copy for sector 0 to the very end of the re-sync operation. Assuming the BIOS makes at least a minimal consistency check on sector 0 before

Re: libata hotplug and md raid?

2007-01-10 Thread Mike Accetta
it would be best to solve this problem? -- Mike Accetta ECI Telecom Ltd. Data Networking Division (previously Laurel Networks) - To unsubscribe from this list: send the line unsubscribe linux-raid in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo

Partitioned arrays initially missing from /proc/partitions

2006-12-01 Thread Mike Accetta
that the array isn't completely usable until the assembly file descriptor is closed, even on return from the ioctl(), and hence the kernel add_disk() isn't having the desired partitioning side effect at the point it is being invoked. This is all with kernel 2.6.18 and mdadm 2.3.1 -- Mike Accetta