Re: ZFS SATA problems

haven't seenOn Sep 7, 10:36 pm, Michael Laajanen
<michael_laaja...@xxxxxxxxx> wrote:
Hi,

Richard B. Gilbert wrote:
Michael Laajanen wrote:
Hi,

Richard B. Gilbert wrote:
Michael Laajanen wrote:
Hi all,

Zfs.. wrote:
On Sep 7, 5:15 pm, Michael Laajanen <michael_laaja...@xxxxxxxxx>
wrote:
Hi,

I am running Solaris 10 on a number of x86 nodes and have root and a
second filesystem mounted over SATA to two harddisk with ZFS.

I am currently testing this SATA link to the harddisks using a simple
script which

- creates a 40GB file1
- copy from file1 to file2
- removes file1
- copy file2 to file1

This is repeated over and over, this one of the nodes reportes
error as
below, anyone know what it actually means?

Sep 5 09:39:13 siu5 gda: [ID 107833 kern.warning] WARNING:
/pci@0,0/pci-ide@1f,2/ide@1/cmdk@0,0 (Disk1):
Sep 5 09:39:13 siu5 Error for command 'read sector' Error
Level: Fatal
Sep 5 09:39:13 siu5 gda: [ID 107833 kern.notice] Requested Block
123893504, Error Block: 123893541
Sep 5 09:39:13 siu5 gda: [ID 107833 kern.notice] Sense Key:
uncorrectable data error
Sep 5 09:39:13 siu5 gda: [ID 107833 kern.notice] Vendor 'Gen-ATA '
error code: 0x7
Sep 5 09:39:17 siu5 gda: [ID 107833 kern.warning] WARNING:
/pci@0,0/pci-ide@1f,2/ide@1/cmdk@0,0 (Disk1):
Sep 5 09:39:17 siu5 Error for command 'read sector' Error
Level: Fatal
Sep 5 09:39:17 siu5 gda: [ID 107833 kern.notice] Requested Block
123893504, Error Block: 123893541
Sep 5 09:39:17 siu5 gda: [ID 107833 kern.notice] Sense Key:
uncorrectable data error
Sep 5 09:39:17 siu5 gda: [ID 107833 kern.notice] Vendor 'Gen-ATA '
error code: 0x7
Sep 5 09:39:21 siu5 gda: [ID 107833 kern.warning] WARNING:
/pci@0,0/pci-ide@1f,2/ide@1/cmdk@0,0 (Disk1):
Sep 5 09:39:21 siu5 Error for command 'read sector' Error
Level: Fatal
Sep 5 09:39:21 siu5 gda: [ID 107833 kern.notice] Requested Block
123893504, Error Block: 123893541
Sep 5 09:39:21 siu5 gda: [ID 107833 kern.notice] Sense Key:
uncorrectable data error
Sep 5 09:39:21 siu5 gda: [ID 107833 kern.notice] Vendor 'Gen-ATA '
error code: 0x7
Sep 5 09:39:25 siu5 gda: [ID 107833 kern.warning] WARNING:
/pci@0,0/pci-ide@1f,2/ide@1/cmdk@0,0 (Disk1):
Sep 5 09:39:25 siu5 Error for command 'read sector' Error
Level: Fatal
S

/michael

Scrub your zpool

zpool scrub mypool

And see if it reports any dodgy data on one of the disks. If it does,
replace the disk.
Could it also mean that I have a bad connection to the drives, like
bad cables and so? Why I am asking this is all 11 nodes/hosts in the
system are connected to a inhouse designed SATA chassis backplane,
one or two drives per node driven via standard SAS cables from
Sun(LSI) HBA's.

Does anyone know of some way to enhance the error reports on these
SATA interfaces by means of setting some "debug variables" to the
drivers in order to get more detailed info?

/michael

What more do you think you need to know? The drive has made multiple
attempts to read block 123893541 and has encountered an error on each
attempt!

The very first thing to do is to try to back up your data. With a
little bit of luck you may be able to make a good backup.

I do not have any data on the drives, I am testing a hard disk chassis.

You could try replacing cables but I think it would be a complete
waste of time. The reported error suggests a problem with the disk.
A bad cable or a poorly seated connector would almost certainly show
different error messages.
That is exactly what I would like to know, what error messages can be
seen on a standard S10, and if it possible to make the driver more
verbose in order to get as much detailed info as possible!

At the very least your disk has a corrupted block. It's conceivable
that rewriting that block might fix it. I would not want to trust
such a disk with my valuable data.

/michael

I don't think that a vanilla Solaris system is able to do diagnosis at
that level!

Could be so, but quite often there are flags that can be set to enhance
the report level even on production systems.



IF you have a Sun service contract, Sun might be able to diagnose the
fault in a little more detail.

The chassis is own designed and the chassis is what I am trying to verify.> The basic problem is clear and I think you are just wasting time trying
to find a work around. A new disk is simply not that expensive,
especially if you don't buy it from Sun! If you want to pinch pennies,
you could probably find a replacement on e-Bay.

I have no problem getting new drives, but that assumes that that there
is a drive fault on not the elctrical connection!
I just like to pin point as detailed as possible before I decide what to do!

/michael


Hi Michael,

You might try using fmdump -eV to show detailed error messages
involving
this disk. The date/time stamps will identify how long this disk has
had problems.

Cindy
.

Relevant Pages

  • Re: ZFS SATA problems
    ... 123893504, Error Block: 123893541 ... Why I am asking this is all 11 nodes/hosts in the system are connected to a inhouse designed SATA chassis backplane, one or two drives per node driven via standard SAS cables from SunHBA's. ... I do not have any data on the drives, I am testing a hard disk chassis. ...
    (comp.unix.solaris)
  • Re: separate hard drive for scratch disks for two different programs?
    ... measures out at a higher speed than the 750GB SATA ... much faster using the middle cylinders than the SCSI ... This is a function of the way the OS deals with the disk, ... of sharing the load between multiple drives, ...
    (rec.photo.digital.slr-systems)
  • Re: SPARC vs Opteron: Which to buy?
    ... Sun has only qualified drives up to 250 GB for the x86 systems. ... The biggest disks available on the market is 500 GB SATA right now. ... You don't *have* to mirror, but not advisable to not mirror at all, for ... External disk stuff would have to be from someone other than Sun. ...
    (comp.unix.solaris)
  • Re: ZFS SATA problems
    ... 123893504, Error Block: 123893541 ... Could it also mean that I have a bad connection to the drives, ... I do not have any data on the drives, I am testing a hard disk chassis. ...
    (comp.unix.solaris)
  • SATA 3ware RAID review...sort of.
    ... Details of a web server upgrade using SATA RAID5 drives. ... External disk case for SCSI SCA 10k RPM drives. ...
    (freebsd-isp)
Loading