New Hard Disk for 9000/803 D220

[Kevin Bingham]

Hi,
I have a 9000/803 D220 that needs a new disk installed. It is running HP-UX 11.0 and needs the extra space for HP-UX 11i. Presently have a Single ended SCSI Seagate ST34573N installed and want to put in a Western Digital 4360 as well.

I really need a step-by-step recipe for what is needed. At the moment I have the new HD sitting looking at me on my desk... what should I do next.

Thanks in advance.

kevin

[Magdi KAMAL]

Hi Kevin,

I believe that disks is belonging to vg00 !

it's really simple:

1. #make_recovery -A -d /dev/rmt/#mn
Attention :
# : stand for your tape number
#mn : no re-wind device needed by Ignite-UX.

this will save the entire vg00 on your system.

2. save anything else on that disks by :
tar
fbackup
dd
cpio
omniback or whatever tool you have.

3. shutdown
4. power off CPU.

5. power off disks if needed ( D220 do not need : it's hot swap disks).

6. Replace disks.
7. Boot
8. interrupt boot in ISL level
9. SEA(rch)
10. BO P#
# : Is a number comming from step 10 for tape identification.
11. Let the Ignite restore everything that you had backup using make_recovery command.
12.Once the restore is finished the system will boot and will be ready AS IF YOU DID NOT TOUCH IT.

Notice : If you wanna resizing some file systems, interrupt the restore process ( Ignite tape ) and give the desired value that you want.

Any question just ask !

Good luck

Magdi

[Paul R. Dittrich]

If it's hot-swap, just plug it in to an active slot. (If I recall correctly, in the D2xx series, only the top two slots in the cage are useable.)
After reboot, do an "ioscan -funC disk" to see if the device is recognized.
Typing "insf -e" creates the special files if they are not already on your system.
Now it's just a matter of LVM or whatever suits your local file system configuration.

HTH,
Paul

[Kevin Bingham]

Perhaps I should clarify my needs.

I have a 4Gb disk and I want to ADD the 2nd disk. The devices are single ended SCSI, and as far as I know they are NOT hot swappable.

I don't want to replace the disk I already have, I just want to add another disk.

So, what I need is the step-by-step process for adding a disk. (I am thinking of the MSDOS {sic} process of install HW, register in the setup, fdisk, partition, format etc.) Up until now, I have only been an HP-UX user, and have not yet done anything like this.

HTH to clarify my needs.

Kevin

[David Navarro]

HI,
First step, install disk. If you have a SE SCSI disk, then your disk is not hot plugable. You must stop your server and install it,be careful with SCSI address. Then boot system, and you can see tha a new device will be appeared. If you have coonfigured new disk with address 5 , new device will be /dev/dsk/c0t5d0.
Now pvcreate /dev/rdsk/c0t5d0.
Then add new disk in vg00, is not recommended add more than one disk in vg00, but if you neww aditional space for new HP-UX version this option is easiest.
vgextend /dev/vg00 /dev/dsk/c0t5d0
Now you have you vg00 volume group with both disks, and you can extend or create new logical volumes in new disk.

Is very important do a make_recovery tape before proceed, and i suggest you to find some one experienced for do this, especially for fisical installation of disk.

Good Luck !

[Kevin Bingham]

Hi,
For the record, the Western Digital disk did not work. I bought a Seagate ST318417N and this slotted in fine. Only hitch was hitting the max_pe limit for the volume group. So now I need ot find a way to get the remaining disk space that is beoyond this limit...
Kevin

[James R. Ferguson]

Hi Kevin:

Once the volume group has been created, the values of 'max_pe', 'max_pv', 'max_lv' and 'pe_size' are fixed. If you don't specify them at 'vgcreate', then the default values are chosen or those of the largest physical disk seen at creation. As you appear to have found, you can 'vgextend' a volume group using a larger physical volume (disk) than originally used to create the group and not be able to address/use all of the physical extents on the disk you just purchased. Sad, but true. Your best recourse is to recreate the volume group and plan as best you can.

Regards!

...JRF...