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Managing the AMASS File System
6-00028-01 Rev A Operational Tasks 2-11
Restore with Earlier AMASS Version
To recover data on a Backup Volume containing a backup from
an earlier version of AMASS, make sure the current
MAXIOSIZE parameter on AMASS is configured to the same
value as when the Backup Volume was made.
For example, your current Backup Volume was made
when the MAXIOSZ value on AMASS was 256 KB.
(This value should be physically noted on the
volume.)
Upgrade AMASS and change the MAXIOSZ value to
1024 KB.
Before attempting to read the Backup Volume, return
the MAXIOSZ parameter on AMASS to 256 KB.
5 Create the following two directories and one file, all with
owner as amass:
• /usr/filesydb
• /home/filesysdb/journal
• /home/filesysdb/journal/dbv4jrnl (This file must be
a minimum of 8 bytes in size.)
6
amassrestore -u
For example:
amassrestore -v -d
/dev/rst12 -L 12N6J
Restore the AMASS File System
Database from the Backup
Volume.
Restores database with verbose
messages (
-v), from a standalone
drive (
/dev/rst12). The Backup
Volume’s barcode is 12N6J.
7 Transition the system to multi-user mode or reboot the
system.
Step Command Description