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pv unavailable

 
joseph51
Regular Advisor

pv unavailable

Hello ..

I am getting an error message in the server that one the pv is unavailable . Also dd command also showing read error , ioscan scan is showing the status as no_hw. But in the lvdisplay output its showing two disk , and I could not find any stale part

root@host:/ : ioscan -fnNC disk | grep -i no_hw
disk 26 64000/0xfa00/0xd esdisk NO_HW DEVICE HP 146 GST3146855LC
root@host:/

root@host:/ : diskinfo /dev/rdisk/disk26
diskinfo: can't SIOC_INQUIRY /dev/rdisk/disk26: No such device or address
root@host:/ :



--- Distribution of physical volume ---
LV Name LE of LV PE for LV
/dev/vg00/lvswap 1875 1875
/dev/vg00/lvsmd 5 5


root@host:/ : lvdisplay -v /dev/vg00/lvswap | more
--- Logical volumes ---
LV Name /dev/vg00/lvswap
VG Name /dev/vg00
LV Permission read/write
LV Status available/syncd
Mirror copies 1
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 60000
Current LE 1875
Allocated PE 3750
Stripes 0
Stripe Size (Kbytes) 0
Bad block on
Allocation PVG-strict
IO Timeout (Seconds) default

--- Distribution of logical volume ---
PV Name LE on PV PE on PV
/dev/disk/disk3_p2 163 163
/dev/disk/disk26 1875 1875
/dev/disk/disk27 1712 1712

--- Logical extents ---
LE PV1 PE1 Status 1 PV2 PE2 Status 2
00000 /dev/disk/disk3_p2 04184 current /dev/disk/disk26 00000 current
00001 /dev/disk/disk3_p2 04185 current /dev/disk/disk26 00001 current
00002 /dev/disk/disk3_p2 04186 current /dev/disk/disk26 00002 current
00003 /dev/disk/disk3_p2 04187 current /dev/disk/disk26 00003 current
00004 /dev/disk/disk3_p2 04188 current

root@host:/ : dd if=/dev/rdsk/c1t10d0 of=/dev/null bs=1024
dd read error: No such device or address
0+0 records in
0+0 records out
root@host:/ :

This disk is under pvg for vg00 .
Could some one help me to find out if this disk is really faulty or anything need to do to resolve this issue



9 REPLIES 9
P Arumugavel
Respected Contributor

Re: pv unavailable

Is thid disk mirror of root disk?

Rgds...
joseph51
Regular Advisor

Re: pv unavailable

Yes , This is mirrored disk . Please find the attachment
joseph51
Regular Advisor

Re: pv unavailable

AT present only one lvol ( swaplv) is using this disk

/dev/rdisk/disk2 and /dev/rdisk/disk3 are mirrored

The disk /dev/disk/disk26 has been added to vg00 for additional space which now using by lvswap
Anoop Sivan
Frequent Advisor

Re: pv unavailable

disk 26 need to replace

#pvchange -a n /dev/disk/disk26
replace the disk

#vgcfgrestore -n vg00 /dev/rdsk/ --> Restore the vg configuration

#vgchange -a y vg00 -->resync mirrors

#lvlnboot -R vg00 -->update BDRA

#lvlnboot -R vg00 -->check the boot configuration.

Check if all the mirrors are in sync.
# vgdisplay -v vg00 |egrep -i "lv name|lv status"

Re: pv unavailable

have you re seated the disk and checked?I think disk needs replacement as ioscan clearly reports no_hw and dd fails as well.
INH
Regular Advisor

Re: pv unavailable

disk /dev/disk/disk26 requires replacement

# pvcreate /dev/rdsk/Lagacy_path ( it will come out with file already exists in /etc/lvmtab_p )

#pvchange -a n /dev/disk/disk26
replace the disk

#vgcfgrestore -n vg00 /dev/rdsk/ --> Restore the vg configuration

#vgchange -a y /dev/vg00 -->resync mirrors

Check if the synch is started else run

#vgsync

#lvdisplay -v /dev/vg00/lvol* | grep stale |wc -l .....................output of this command should 0 otherwise wait for some





Knowledge is power
Torsten.
Acclaimed Contributor

Re: pv unavailable

The status

PV Name /dev/disk/disk26
PV Status unavailable

and the NO_HW status indicates a dead disk that needs replacement.

Hope this helps!
Regards
Torsten.

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joseph51
Regular Advisor

Re: pv unavailable

Thanks for all for your valuable response . I have replaced the disk and performed vgcfgrestore .
Now everything is fine
thanks
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joseph51
Regular Advisor

Re: pv unavailable

thanks