make_recovery trouble.......

[matteo_4]

Hi all,
i need to backup all my 8gbyte disk scsi on my hp b180l workstation.
I have a dds2 tape with data tape 120m 4mm
(8gb compressed or 4 gbyte)

The make_recovery process tell me:

pax: Ready for volume 2
pax: Type "go" when ready to proceed ......

I suppose in that way i have 2 or more dat tape is this correct ??

Could I have problem when i'm using that tapes???

thank you all

best regard

Matteo

[Robert-Jan Goossens · Accepted solution]

Hi Matteo,

No, it is not the fastest metodh but it will work. Are you igniting only VG00 ?

Robert-Jan

[Patrick Wallek]

Yes, you will have multiple tapes. It is asking for the 2nd tape. When you do the restore it will do the same thing.

There should be no problems in doing this. I have used 2 tapes for an Ignite backup and not had a problem with the restore.

[Mark Greene_1]

excute this:

lssf /dev/rmt/0mn

(using the appropriate drive number) and see if the output includes "best density"; if it does, you've got too much data and it wants a 2nd tape. If not, you're not using compression. I don't know if that would mean you'd have to remake the device file (man mksf for the details) or if there is a way to activate compression for the existing device.

mark

[matteo_4]

thanks all

Yes i'll backup only vg00

[Todd McDaniel_1]

Just for future reference.

I use DDS3 tapes 12/24GB. they are very handy nowadays with larger disks and filesystems...

So you dont have to compress your ignite backup. Also, it allows for faster restore if it is not compressed, but you knew that.

FYI, You might need 3 tapes b/c of header needed on each tape... In the future try to get DDS3 tapes if they are available...

[John Carr_2]

Hi

2 tapes sound right depending on how much of the disk is actually used. DDS-3 is an option but then is it worth buting a second tape drive and DDS-3 tapes rather than using 2 dds_2 tapes

:-) John.