On 04/01/2011 05:32 PM, Jerry Geis wrote:
dmesg is not reporting any issues.
The /proc/mdstat looks fine.
md0 : active raid1 sdb1[1] sda1[0]
X blocks [2/2] [UU]
however /var/log/messages says:
smartd[3392] Device /dev/sda 20 offline uncorrectable sectors
The machine is running
Scott Silva wrote:
Could it be that the bad sectors so far have been in unused areas? Once a
drive runs out of sectors to map corrections to, I would really think
about replacing it.
This advice is so often repeated by people on lists. This is a pretty normal
function of modern hard drives.
On 4/1/2011 11:32 AM, Jerry Geis wrote:
Device /dev/sda 20 offline uncorrectable sectors
my .02 i would replace the drive.
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dmesg is not reporting any issues.
The /proc/mdstat looks fine.
md0 : active raid1 sdb1[1] sda1[0]
X blocks [2/2] [UU]
however /var/log/messages says:
smartd[3392] Device /dev/sda 20 offline uncorrectable sectors
The machine is running fine.. raid array looks good - what
is up with
on 4/1/2011 8:32 AM Jerry Geis spake the following:
dmesg is not reporting any issues.
The /proc/mdstat looks fine.
md0 : active raid1 sdb1[1] sda1[0]
X blocks [2/2] [UU]
however /var/log/messages says:
smartd[3392] Device /dev/sda 20 offline uncorrectable sectors
The machine
Jerry Geis wrote:
dmesg is not reporting any issues.
The /proc/mdstat looks fine.
md0 : active raid1 sdb1[1] sda1[0]
X blocks [2/2] [UU]
however /var/log/messages says:
smartd[3392] Device /dev/sda 20 offline uncorrectable sectors
The machine is running fine.. raid array looks
On Fri, 1 Apr 2011, Jerry Geis wrote:
dmesg is not reporting any issues.
The /proc/mdstat looks fine.
md0 : active raid1 sdb1[1] sda1[0]
X blocks [2/2] [UU]
however /var/log/messages says:
smartd[3392] Device /dev/sda 20 offline uncorrectable sectors
The machine is running fine..
Does software raid 1 compare checksums or otherwise verify that the same
bits are coming from both disks during reads? What I'm interested in,
is whether bit errors that were somehow undetected by the hardware would
be detected by the raid 1 software.
Thanks,
Nataraj
Nataraj wrote:
Does software raid 1 compare checksums or otherwise verify that the same
bits are coming from both disks during reads? What I'm interested in,
is whether bit errors that were somehow undetected by the hardware would
be detected by the raid 1 software.
under normal operation,
On Sun, 2008-09-21 at 11:12 -0700, John R Pierce wrote:
Nataraj wrote:
Does software raid 1 compare checksums or otherwise verify that the same
bits are coming from both disks during reads? What I'm interested in,
is whether bit errors that were somehow undetected by the hardware would
Nataraj wrote:
Thank you John. I'm pretty sure that raid 5 or 6 would be safe, since
there is parity checking, however it sounds like this may not be the
case for raid 1.
the parity on raid5/6 is only checked if you run some sort of scrub, and
its used to regenerate a failed drive onto a
On Sun, Sep 21, 2008 at 10:26 AM, Nataraj [EMAIL PROTECTED] wrote:
Does software raid 1 compare checksums or otherwise verify that the same
bits are coming from both disks during reads? What I'm interested in,
No. Reads are distributed over disks to increase performance.
is whether bit
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