topic Re: remove the partition from the second mirroring disk in Operating System - HP-UX

remove the partition from the second mirroring disk

itrc55 — Sat, 18 Feb 2012 06:12:02 GMT

Hi,

I know how to use the idisk command to partition the second mirroring disk on Itanium.

but how can i remove the partition from the second mirroring disk

i use the idisk -R command but stil all 3 partitions available.

disk 2 0/1/1/0.0.0.2.0 sdisk CLAIMED DEVICE HP DG146ABAB4
/dev/dsk/c0t2d0 /dev/dsk/c0t2d0s2 /dev/rdsk/c0t2d0 /dev/rdsk/c0t2d0s2
/dev/dsk/c0t2d0s1 /dev/dsk/c0t2d0s3 /dev/rdsk/c0t2d0s1 /dev/rdsk/c0t2d0s3

Thanks

Re: remove the partition from the second mirroring disk

itrc55 — Mon, 20 Feb 2012 06:30:01 GMT

Hi,

is there anybody to help me ?

Thanks

Re: remove the partition from the second mirroring disk

Matti_Kurkela — Mon, 20 Feb 2012 08:43:23 GMT

If you do not specify the '-w' option with idisk, it operates in read-only mode, making no actual changes at all.

The required command (as documented in HP's "When good disks go bad" PDF) is:

idisk -Rw /dev/rdsk/c0t2d0

After this, the partition configuration will be gone, but the device nodes referring to the partitions will remain.

To make the device nodes reflect the new state of the disk, you'll need another command:

insf -e -H 0/1/1/0.0.0.2.0

Re: remove the partition from the second mirroring disk

itrc55 — Wed, 22 Feb 2012 06:01:13 GMT

Hi,

i run the below command but i still see the disk partition

>>>>>>>>>>>>>>>>

The required command (as documented in HP's "When good disks go bad" PDF) is:

idisk -Rw /dev/rdsk/c0t2d0

After this, the partition configuration will be gone, but the device nodes referring to the partitions will remain.

To make the device nodes reflect the new state of the disk, you'll need another command:

insf -e -H 0/1/1/0.0.0.2.0

<<<<<<<<<<<<<<<<<

# idisk -Rw /dev/rdsk/c4t1d0
idisk: Write mode requires description file
idisk version: 1.44
********************** WARNING ***********************
If you continue you will destroy all partition data on this disk.
Do you wish to continue(yes/no)? yes

# insf -e -H 0/1/1/0.0.0.1.0
insf: Installing special files for sdisk instance 6 address 0/1/1/0.0.0.1.0

# ioscan -funC disk

#lvlnboot -v
Boot Definitions for Volume Group /dev/vg00:
Physical Volumes belonging in Root Volume Group:
        /dev/disk/disk12_p2 -- Boot Disk
Boot: lvol1     on:     /dev/disk/disk12_p2
Root: lvol3     on:     /dev/disk/disk12_p2
Swap: lvol2     on:     /dev/disk/disk12_p2
Dump: lvol2     on:     /dev/disk/disk12_p2, 0

Your support please, Thanks

Re: remove the partition from the second mirroring disk

Torsten. — Wed, 22 Feb 2012 06:07:07 GMT

Use "rmsf -x" to remove stale device files.

Re: remove the partition from the second mirroring disk

itrc55 — Wed, 22 Feb 2012 06:22:05 GMT

Hi,

still the partition available

# rmsf -x

#i oscan -funC disk
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
disk 7 0/1/1/0.0.0.0.0 sdisk CLAIMED DEVICE HP DG146ABAB4
/dev/dsk/c4t0d0 /dev/dsk/c4t0d0s1 /dev/dsk/c4t0d0s2 /dev/dsk/c4t0d0s3 /dev/rdsk/c4t0d0 /dev/rdsk/c4t0d0s1 /dev/rdsk/c4t0d0s2 /dev/rdsk/c4t0d0s3
disk 6 0/1/1/0.0.0.1.0 sdisk CLAIMED DEVICE HP DG146ABAB4
/dev/dsk/c4t1d0 /dev/dsk/c4t1d0s1 /dev/dsk/c4t1d0s2 /dev/dsk/c4t1d0s3 /dev/rdsk/c4t1d0 /dev/rdsk/c4t1d0s1 /dev/rdsk/c4t1d0s2 /dev/rdsk/c4t1d0s3

# rmsf -x -H 0/1/1/0.0.0.1.0

#ioscan -funC disk
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
disk 7 0/1/1/0.0.0.0.0 sdisk CLAIMED DEVICE HP DG146ABAB4
/dev/dsk/c4t0d0 /dev/dsk/c4t0d0s1 /dev/dsk/c4t0d0s2 /dev/dsk/c4t0d0s3 /dev/rdsk/c4t0d0 /dev/rdsk/c4t0d0s1 /dev/rdsk/c4t0d0s2 /dev/rdsk/c4t0d0s3
disk 6 0/1/1/0.0.0.1.0 sdisk CLAIMED DEVICE HP DG146ABAB4
/dev/dsk/c4t1d0 /dev/dsk/c4t1d0s1 /dev/dsk/c4t1d0s2 /dev/dsk/c4t1d0s3 /dev/rdsk/c4t1d0 /dev/rdsk/c4t1d0s1 /dev/rdsk/c4t1d0s2 /dev/rdsk/c4t1d0s3

Thanks

Re: remove the partition from the second mirroring disk

Torsten. — Wed, 22 Feb 2012 09:35:23 GMT

First I would check if the partitions are really deleted:

# idisk /dev/rdsk/c4t1d0

then remove the special files

# rmsf -H 0/1/1/0.0.0.1.0

then do an "ioscan" again.

Re: remove the partition from the second mirroring disk

itrc55 — Wed, 22 Feb 2012 13:07:08 GMT

Hi,

# idisk /dev/rdsk/c4t1d0

idisk version: 1.44
idisk: Primary partition information not valid.
Run idisk with -r option to restore.

# rmsf -H 0/1/1/0.0.0.1.0

# ioscan -funC disk

the full disk it's removed now, not only the partition

Thanks

Re: remove the partition from the second mirroring disk

Torsten. — Wed, 22 Feb 2012 13:22:53 GMT

Is this the same system?

http://h30499.www3.hp.com/t5/System-Administration/rx2660-bad-disk/m-p/5559539#M478567

Did you replace the disk meanwhile?

A new disk will get a new device file!

c4t1d0 becomes c4t2d0 after replacement!

Please clarify if the disk is replaced.

Re: remove the partition from the second mirroring disk

itrc55 — Sat, 25 Feb 2012 04:44:21 GMT

Hi,

Is this the same system?

http://h30499.www3.hp.com/t5/System-Administration/rx2660-bad-disk/m-p/5559539#M478567

No, this other server with 2 disk only, one bad disk.

Did you replace the disk meanwhile?

No i don't replace any disk

A new disk will get a new device file!

c4t1d0 becomes c4t2d0 after replacement!

Please clarify if the disk is replaced.

No this system has 3 disk, after i execute the # rmsf -H 0/1/1/0.0.0.1.0 command the disk disappeared and not available on ioscan, but i think after reboot will appear where i try with insf -e but nothing.

this output of ioscan before run the # rmsf -H 0/1/1/0.0.0.1.0 command.

#ioscan -funC disk

Class I H/W Path Driver S/W State H/W Type Description
=====================================================================

disk 7 0/1/1/0.0.0.0.0 sdisk CLAIMED DEVICE HP DG146ABAB4
/dev/dsk/c4t0d0 /dev/dsk/c4t0d0s1 /dev/dsk/c4t0d0s2 /dev/dsk/c4t0d0s3 /dev/rdsk/c4t0d0 /dev/rdsk/c4t0d0s1 /dev/rdsk/c4t0d0s2 /dev/rdsk/c4t0d0s3
disk 6 0/1/1/0.0.0.1.0 sdisk CLAIMED DEVICE HP DG146ABAB4
/dev/dsk/c4t1d0 /dev/dsk/c4t1d0s1 /dev/dsk/c4t1d0s2 /dev/dsk/c4t1d0s3 /dev/rdsk/c4t1d0 /dev/rdsk/c4t1d0s1 /dev/rdsk/c4t1d0s2 /dev/rdsk/c4t1d0s3
disk 8 0/1/1/0.0.0.2.0 sdisk CLAIMED DEVICE HP DG146ABAB4
/dev/dsk/c4t2d0 /dev/rdsk/c4t2d0
disk 3 0/4/1/0.2.5.0.0.0.0 sdisk CLAIMED DEVICE DGC CX4-480WDR5
/dev/dsk/c3t0d0 /dev/rdsk/c3t0d0
disk 4 0/4/1/0.2.5.0.0.0.1 sdisk CLAIMED DEVICE DGC CX4-480WDR5
/dev/dsk/c3t0d1 /dev/rdsk/c3t0d1
disk 5 0/4/1/0.2.5.0.0.0.2 sdisk CLAIMED DEVICE DGC CX4-480WDR5
/dev/dsk/c3t0d2 /dev/rdsk/c3t0d2
disk 0 0/4/1/0.2.6.0.0.0.0 sdisk CLAIMED DEVICE DGC CX4-480WDR5
/dev/dsk/c1t0d0 /dev/rdsk/c1t0d0
disk 1 0/4/1/0.2.6.0.0.0.1 sdisk CLAIMED DEVICE DGC CX4-480WDR5
/dev/dsk/c1t0d1 /dev/rdsk/c1t0d1
disk 2 0/4/1/0.2.6.0.0.0.2 sdisk CLAIMED DEVICE DGC CX4-480WDR5
/dev/dsk/c1t0d2 /dev/rdsk/c1t0d2
disk 15 255/1/0.0.0 sdisk CLAIMED DEVICE TEAC DV-28E-N
/dev/dsk/c5t0d0 /dev/rdsk/c5t0d0
disk 17 255/1/0.1.0 sdisk CLAIMED DEVICE HP Virtual CD-ROM
/dev/dsk/c5t1d0 /dev/rdsk/c5t1d0

Thanks

Re: remove the partition from the second mirroring disk

Torsten. — Sat, 25 Feb 2012 11:29:33 GMT

If it is not shown in ioscan, the bad disk is likely dead. Try

# sasmgr get_info -D /dev/sasd0 -q raid

with the appropriate sasd device.

Re: remove the partition from the second mirroring disk

itrc55 — Sun, 26 Feb 2012 09:35:03 GMT

Hi,

after reboot hte server i see now the all 3 disk and the partition disk it's removed.

# ioscan -funC disk

Class     I H/W Path     Driver S/W State   H/W Type     Description
=====================================================================
disk      7 0/1/1/0.0.0.0.0      sdisk   CLAIMED     DEVICE       HP      DG146ABAB4
                         /dev/dsk/c4t0d0     /dev/dsk/c4t0d0s1   /dev/dsk/c4t0d0s2   /dev/dsk/c4t0d0s3   /dev/rdsk/c4t0d0    /dev/rdsk/c4t0d0s1 /dev/rdsk/c4t0d0s2 /dev/rdsk/c4t0d0s3
disk      6 0/1/1/0.0.0.1.0      sdisk   CLAIMED     DEVICE       HP      DG146ABAB4
                         /dev/dsk/c4t1d0   /dev/rdsk/c4t1d0
disk      8 0/1/1/0.0.0.2.0      sdisk   CLAIMED     DEVICE       HP      DG146ABAB4
                         /dev/dsk/c4t2d0   /dev/rdsk/c4t2d0
disk      3 0/4/1/0.2.5.0.0.0.0 sdisk   CLAIMED     DEVICE       DGC     CX4-480WDR5
                         /dev/dsk/c3t0d0   /dev/rdsk/c3t0d0
disk      4 0/4/1/0.2.5.0.0.0.1 sdisk   CLAIMED     DEVICE       DGC     CX4-480WDR5
                         /dev/dsk/c3t0d1   /dev/rdsk/c3t0d1
disk      5 0/4/1/0.2.5.0.0.0.2 sdisk   CLAIMED     DEVICE       DGC     CX4-480WDR5
                         /dev/dsk/c3t0d2   /dev/rdsk/c3t0d2
disk      0 0/4/1/0.2.6.0.0.0.0 sdisk   CLAIMED     DEVICE       DGC     CX4-480WDR5
                         /dev/dsk/c1t0d0   /dev/rdsk/c1t0d0
disk      1 0/4/1/0.2.6.0.0.0.1 sdisk   CLAIMED     DEVICE       DGC     CX4-480WDR5
                         /dev/dsk/c1t0d1   /dev/rdsk/c1t0d1
disk      2 0/4/1/0.2.6.0.0.0.2 sdisk   CLAIMED     DEVICE       DGC     CX4-480WDR5
                         /dev/dsk/c1t0d2   /dev/rdsk/c1t0d2
disk     15 255/1/0.0.0 sdisk   CLAIMED     DEVICE       TEAC    DV-28E-N
                         /dev/dsk/c5t0d0   /dev/rdsk/c5t0d0

# sasmgr get_info -D /dev/sasd0 -q raid
ERROR: Unable to open the file /dev/sasd0.
Please verify the correctness of the HBA device file specified
with -D option.

# sasmgr get_info -D /dev/sasd1 -q raid

Sun Feb 26 12:30:14 2012

---------- PHYSICAL DRIVES ----------
LUN dsf SAS Address Enclosure Bay Size(MB)

/dev/rdsk/c4t0d0     0x5000c50005196d99     1            6      140014
/dev/rdsk/c4t1d0     0x5000c500051a0f79     1            7      140014
/dev/rdsk/c4t2d0     0x5000c5000518eac5     1            8      140014

Thanks for your support, i don't know why is not removed from a first.

Thanks again