zpool raidz1 still serving data but two devices have problems

Newsgroups	comp.sys.sun.admin
Date	2014-04-07 13:21 -0700
Message-ID	<7474aedc-63a6-458b-9d6e-a555f727ed47@googlegroups.com> (permalink)
Subject	zpool raidz1 still serving data but two devices have problems
From	Scott <spackard@gmail.com>

Show all headers | View raw

Pardon the below, it went in and out of OCR.

I'm wondering why the zpool is still serving data, as I thought
one device out is all that a raidz1 could tolerate.
It is serving data now, but has frozen twice in 72 hours,
and been rebooted.

1) I have no idea who built this.

2) Below the FC disks is a HP storage server that takes 6 SAS-attached HDDs,
combines them together in a RAID-0 stripe and presents them to the host
as 1 FC drive.

3) There are two controllers in the HP storage server and two FC cards in the host, but multipathing presents each volume from the storage server as one FC drive to the host.

4) Beats me where the c3t2 device went. c7t6 devices are the HP storage server, and the only place the pool was supposed to be.

5) All lights green and all systems normal in the HP storage server. The only thing in the history log is a spare disk was pushed into service 6 months ago.
It occurred into vdisk vd01.

# zpool status -xv
pool: harry
state: DEGRADED
status: One or more devices has experienced an error resulting in data corruption. Applications may be affected.
action: Restore the file in question if possible. Otherwise restore the
entire pool from backup.
see : http: //www.sun.com/msg/ZFS-8000-8A
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
harry DEGRADED 0 0 0
raidzl DEGRADED 0 0 0
c3t20700OCOFFD86BA4d2 FAULTED 0 0 0 too many errors
c7t600COFF000D84AOE6E9EC44BO1000000dO ONLINE 0 0 0
c7t600COFF000D84AOEB59EC44BO1000000dO ONLINE 0 0 0
c7t600COFF000D87F5F3C8FC44BO1000000dO ONLINE 0 0 0
c7t600COFF000D87F5FO78FC44BO1000000dO DEGRADED 0 0 0 too many errors
c7t600COFF000D876AC989EC44BO1000000dO ONLINE 0 0 0
c7t600COFF000D876ACD29EC44BO1000000dO ONLINE 0 0 0

errors: Permanent errors have been detected in the following files:
/datavl/lights/foo1/foo2.bin
#
# format < /dev/null
Searching for disks. . .done
AVAILABLE DISK SELECTIONS:
0. c5tOdO <DEFAULT cyl 8917 alt 2 hd 255 sec 63>
/pci@O,O/pci8O8C,3408@l/pcilO3c,3245@O/sd@O,O
1. c7t600COFF000D84AOE6E9EC44BO1000000dO <HP-MSA23l2fc-MllO-4.O9TB>
/scsi_vhci/diskg6OOcOffOOOd84aOe6e9ec44bOlOOOOOO
2 . c7t600COFF000D84AOEB59EC44BO1000000dO <HP-MSA23l2fc-MllO-4.O9TB>
/scsivhci/diskg6OOcOffOOOd84aOeb59ec44bOlOOOOOO
3. c7t600COFF000D87F5F3C8FC44BO1000000dO <HP-MSA23l2fc-MllO-4.O9TB>
/scsi_vhci/diskg6OOcOffOOOd$7f5f3c8fc44bOlOOOOOO
4 . c7t600COFF000D87F5FO78FC44BO1000000dO <HP-MSA2312fc-MllO-4.O9TB>
/scsi_vhci/disk@gCOOcOff000d87f5fO78fc44bOl000000
5. c7t600COFF000D876AC989EC44BO1000000dO <HP-MSA23l2fc--MllO--4.O9TB>
/scsi_vhci/disk@g600cOff000d876ac989ec44b01000000
6. c7t600COFF000D876ACD29EC44BO1000000dO <HP-MSA23l2fc-MllO-4.O9TB>
/scsi_vhci/diskg6OOcOffOOOd876acd29ec44bOlOOOOOO
7 . c7t600COFF000D872748FA15A4DO1000000dO <HP-MSA23l2fc-MllO-4.O9TB>
/scsi_vhci/diskg6OOcOffOOOd272748fal5a4dOlOOOOOO
Specify disk (enter its number):
#
# ssh -xl manage 10.1.1.10
#
# show volume-maps
Info: Retrieving data...
Volume View [Serial Number (OOcOffd87f5f0000078fc44bOl000000) Name (vd0l_vOOl) ] Mapping:
LUN Access Host-Port-Identifier Nickname Profile
Volume View [Serial Number (OOcOffd87f5f00003c8fc44bOl000000) Name (vdO3_vOOl) ] Mapping:
Ports LUN Access Host-Port-Identifier Nickname Profile
Volume View [Serial Number (00c0ffd8727400008fa15a4d01000000) Name (vdO2_vOOl) ] Mapping:
Ports LUN Access Host-Port-Identifier Nickname Profile
Al,A2,Bl,B2 2 read-write all other hosts Standard
(snip)

Bottom level: vd01_v001 is the vdisk and volume
Mid level: HDD 4. is the HDD in the format command that supposedly has
issues
Top level: c7t600COFF000D87F5FO78FC44BO1000000dO DEGRADED
matches stated Mid level and Bottom level device.
Pool level: "harry" of type raidz1.

Regards, Scott

Back to comp.sys.sun.admin | Previous | Next | Find similar

Thread

zpool raidz1 still serving data but two devices have problems Scott <spackard@gmail.com> - 2014-04-07 13:21 -0700

csiph-web