Upgrade Hard Disk to a larger one Post: 3545

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Top Forums UNIX for Dummies Questions & Answers Upgrade Hard Disk to a larger one Post 3545 by DLongan on Thursday 5th of July 2001 10:22:54 AM

07-05-2001

Registered User

Upgrade Hard Disk to a larger one

Hello folks,

I have a sun sparcstation 20, I would like to upgrade one of the hard disks to a larger one. The one I would like to upgrade only contains user data. Here are my thoughts:

1. Backup the specific file system
2. Replace the disk with the larger disk
3. Create a new file system
4. Restore the user data

I would have liked to do a disk to disk copy but I am max on scsi devices so I will use tape.

Questions are:

1. I purchased a used Seagate ST19171/WC that supposedly came out of a sun box. I have read some threads here stating that it seems difficult to get generic hard disks to work with sun systems. Is this true and anyone know how to overcome this?

2. Using a backup utility called "Mr. Backup" is there anything special about the restore? Since the file systems will be different is there anything specific that I will need to do to get this to work. Or should I use the sun utilities tar /cpio?

All help would be greatly appreciated,

Don

DLongan

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LEARN ABOUT OSF1

volreattach

volreattach(8)						      System Manager's Manual						    volreattach(8)

NAME

       volreattach - Reattaches disk drives that have once again become accessible

SYNOPSIS

       /usr/sbin/volreattach [-rb] [accessname...]

       /usr/sbin/volreattach -c  accessname

OPTIONS

       The  volreattach  utility  has the following options: Calls the volrecover utility to attempt to recover stale plexes of any volumes on the
       failed disk.  Performs the reattach operation in the background.  Checks whether a reattach is possible. No operation is performed, but the
       name of the disk group and disk media name at which the disk can be reattached is displayed.

DESCRIPTION

       The volreattach utility attempts to reattach disks using the same disk group and media names they had before detachment.

       This  operation	may  be  necessary  if a disk has a transient failure, or if some disk drivers are unloaded or unloadable when the Logical
       Storage Manager is started, causing disks to enter the failed state.

       If the problem is fixed, the volreattach command can be used to reattach the disks without plexes being flagged as stale, as  long  as  the
       reattach happens before any volumes on the disk are started.

       The volreattach command is called from the voldiskadm menus as part of disk recovery.

       The  volreattach  utility tries to find a disk with a disk group and disk ID matching that of the disk(s) being reattached. If the matching
       disk is found, the reattach operation may still fail if the original cause (or some other cause) for the disk failure still exists.

EXIT CODES

       A zero exit status is returned if it is possible to perform a reattach.	Otherwise, non-zero is returned.

SEE ALSO

       volintro(8), voldiskadm(8), volrecover(8)

																    volreattach(8)