2009-04-30 20:26:19 UTC
I am on ASE 15.0.2 ESD#6. I have just started experimenting with compressed
dumps to tape, and I'm having trouble with it. I'm doing a dump operation
dump database master to "/dev/rmt/0n" with init
dump database miqs to "/dev/rmt/0n" with compression=1
My intention is to write two sequential dumps to the tape, the first one
uncompressed but the second one compressed. The dumps report no errors and
appear to run fine. If I then use load with headeronly or listonly, I get
what looks like the expected responses. The problem comes when I try to load
the second dump back into the database. I use a command like:
load database miqs from "/dev/rmt/0n" with file="miqs091200D381"
That results in the following output:
Backup Server: 184.108.40.206: Volume validation error: illegal volume change,
device /dev/rmt/0n: stripe 0 is already loaded.
Backup Server: 220.127.116.11: Header labels of rejected volume:
Backup Server: 18.104.22.168:
Backup Server: 22.214.171.124: OPERATOR: Mount the next volume to read.
Backup Server: 126.96.36.199: EXECUTE sp_volchanged
I believe my sequence of commands are okay, and my tape is okay, because
when I repeat the entire process as above but WITHOUT any compression, the
load works perfectly. I have repeated several times, sometimes with
compression and sometimes without, and my results have been consistent.
What am I doing wrong?