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Full Discussion: FAULTY DISK replacement HP rx4640
Operating Systems HP-UX FAULTY DISK replacement HP rx4640 Post 302645255 by gjk on Wednesday 23rd of May 2012 06:58:50 AM
Old 05-23-2012
Hi
I asked someone on site to execute the echo command and this is what was returned.
adb: warning: Unrecognized format character - 'S'
I don't know if this means that the command was not correct??
Anyway i got more than 2 disks HP 146 ST3146855LC in stock so what I'm missing is the procedure. I have been searching all this days and i have comed with two very similar ones. And on both of them I'm not very sure about partitioning and make boot. Any way I'm posting booth and please, please correct me if I'm wrong. I want to apologize as I don't know how to separate the tags.

PROCEDURE 1


1) Deactivate Physical Volumen before extraction:

Code:
#/root> pvchange -a N /dev/dsk/c3t0d0s2

Do disk replacement. Give 90-120 seconds after disk extract and after disk insert.



2) "Discover" new disk:

Code:
#/root> diskinfo /dev/rdsk/c3t0d0

Code:
#/root> ioscan -fnC disk | grep c3t0d0

Code:
#/root> insf -eC disk



3) Erase partition table and create a new one:

Code:
#/root> idisk -Rw /dev/rdsk/c3t0d0

Code:


Code:



#/root> cat /tmp/partition_file






3
EFI 500MB
HPUX 100%
HPSP 400MB

Code:
#/root> idisk -wf /tmp/partition_file /dev/rdsk/c3t0d0

Code:
#/root> insf -eC disk

Code:
#/root> efi_fsinit -d /dev/rdsk/c3t0d0s1


4) Restore LVM data and reactivate PV:


Code:
#/root> vgcfgrestore -n vg00 /dev/rdsk/c3t0d0s2

Code:
#/root> pvchange -a y /dev/dsk/c3t0d0s2




5) Create boot data:


Code:
#/root> mkboot -e -l /dev/rdsk/c2t6d0

I'M NOT SURE ABOUT THE BELOW

Code:
#/root> mkboot -a "boot vmunix -lq" /dev/rdsk/c3t0d0

Code:
#/root> lvlnboot -v -R /dev/vg00

Code:
#/root> vgchange -a y vg00


Some tests to see the sync process:



Code:
#


Code:



/root> for i in 1 2 3 4 5 6 7 ; do lvdisplay -v /dev/vg00/lvol${i} ; done | grep "LV Stat"






LV Status available/syncd
LV Status available/syncd
LV Status available/syncd
LV Status available/syncd
LV Status available/syncd
LV Status available/stale
LV Status available/stale


PROCEDURE 2



1) Save the hardware path
Run the ioscan command and note the hardware path
Code:
# ioscan –m lun /dev/disk/disk13
Class     I  Lun H/W Path  Driver  S/W State   H/W Type     Health    Description
========================================================================
disk     13  64000/0xfa00/0x5   esdisk  NO_HW       DEVICE       disabled  HP 146 GST3146855LC       
             0/1/1/1.0x0.0x0
                      /dev/disk/disk13      /dev/disk/disk13_p2   /dev/rdisk/disk13     /dev/rdisk/disk13_p2
                      /dev/disk/disk13_p1   /dev/disk/disk13_p3   /dev/rdisk/disk13_p1  /dev/rdisk/disk13_p3

Lun hardware path is 64000/0xfa00/0x5
Lunpath hardware path is 0/1/1/1.0x0.0x0

2) Halt LVM access to the disk

Code:
# pvchange -a N /dev/disk/disk13_p2

3) Replace the hot-swappable disk and wait 2 minutes

4) Notify the maas storage subsystem that the disk has been replaced

If system not rebooted run scsimgr before using disk as a replacement for the old disk. For example:
Code:
# scsimgr replace_wwid –D /dev/rdisk/disk13

5) Determine the new lun instance number for the replacement disk. For example

Code:
# ioscan –m lun 
Class     I  Lun H/W Path  Driver  S/W State   H/W Type     Health    Description
========================================================================
disk     13  64000/0xfa00/0x5   esdisk  NO_HW       DEVICE       offline  HP MSA Vol      
             
                      /dev/disk/disk13         /dev/rdisk/disk13     
                      /dev/disk/disk13_p1      /dev/rdisk/disk13_p1  
              /dev/disk/disk13_p2      /dev/rdisk/disk13_p2
              /dev/disk/disk13_p3      /dev/rdisk/disk13_p3

disk 28 64000/0xfa00/0x1c esdisk Claimed DEVICE online HP MSA Vol
0/1/1/1.0x0.0x0
/dev/disk/disk28 /dev/rdisk/disk28


6) (HP Integrity servers only) Partition the replacement disk.

a. Partition the disk by using the idisk command and a partition description file

First cleare the previews partition configuration on disk
Code:
idisk -Rw /dev/rdsk/c3t0d0

Create a partition description file. For example:
Code:


Code:



# vi /tmp/pdf






In this example, the partition description file contains:
3
EFI 500MB
HPUX 100%
HPSP 400MB

Partition the disk using idisk and the partition description file created above:
Code:
idisk -f /tmp/pdf -w /dev/rdsk/c3t0d0

To verify enter:
Code:
# idisk /dev/rdsk/c3t0d0

b. Enter the insf command with -e option to create legeacy device files for partitions:

Code:
# insf -insf -eC disk

Use efi_fsinit to initialize the FAT filesystem on the EFI pertition:

Code:
# efi_fsinit -d /dev/rdsk/c3t0d0s1

7) 7. Assign the old instance number to the replacement disk. For example:
Code:
# io_redirect_dsf -d /dev/disk/disk13 -n /dev/disk/disk28

This assigns the old LUN instance number(13) to the replacement disk. In addition, this device
special files for the new disk are renamed to be consistent with the old LUN instance number.

The following ioscan –m lun output shows the result:

Code:
# ioscan –m lun /dev/disk/disk13

Class I Lun H/W Path Driver S/W State    H/W Type     Health    Description
========================================================================
disk 13   64000/0xfa00/0x1c esdisk CLAIMED DEVICE online HP MSA Vol 
0/1/1/1.0x0.0x0
                   /dev/disk/disk13         /dev/rdisk/disk13     
                      /dev/disk/disk13_p1      /dev/rdisk/disk13_p1  
              /dev/disk/disk13_p2      /dev/rdisk/disk13_p2
              /dev/disk/disk13_p3      /dev/rdisk/disk13_p3

8) Restore LVM configuration information to the new
Code:
# vgcfgrestore -n /dev/vg00 /dev/rdisk/disk13_p2

9) Restore LVM access to the disk.

Code:
# pvchange -a y /dev/dsk/disk13_p2

10) Initialize boot information on the disk.

Code:
# mkboot -e -l /dev/rdsk/c2t6d0

I'M NOT SURE ABOUT THE BELOW

Code:
#/root> mkboot -a "boot vmunix -lq" /dev/rdsk/c3t0d0

#/root> lvlnboot -v -R /dev/vg00

#/root> vgchange -a y vg00




Thanks again for the support,
Gjk
Last edited by gjk; 05-23-2012 at 08:25 AM..
 

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