05-05-2013 08:13 AM
Hi,
We have SL500 library (4xLT04) connected with Netbackup 7.5 media server. We are going add a expansion module with two LTO5 and 50 cells to same library. And we need to use both LTo4 and LTo5 tapes in the same library. My question is how netbackup will manage tapes of different densities? Will it try load LTO5 tapes to LT04 drives? If yes is there any way to ensure only LTO4 media loaded in LT04 and LT05 media to LTO5 drive? Do we need to some kind of partitioning in SL500 library to ensure correct media loaded in to corresponding drive type?
Regards,
Anish
Solved! Go to Solution.
05-05-2013 10:04 AM
Density of the Tape Drives and tape in Netbackup will Manage this..
lets say.. if your current LTO 4 Drives and tapes are configured as "HCART3", confiugred your LTO5 tape& Drives with differnt Density Lets Say "HCART"
as netbackup always try to mount the same Density tapes into the Drives..
LTO 4 tapes always goes to LTO 4 Drives with HCART3 density
LTO 5 tapes always goes to LTO 5 Drives with HCART density.
your configurations with the Density will do the Magic.
PS:-LTO 5 Drives can Drives data on LTO 4 tapes.. but LTO 4 Drives can not write data on LTO 5 tapes..
05-05-2013 10:04 AM
Density of the Tape Drives and tape in Netbackup will Manage this..
lets say.. if your current LTO 4 Drives and tapes are configured as "HCART3", confiugred your LTO5 tape& Drives with differnt Density Lets Say "HCART"
as netbackup always try to mount the same Density tapes into the Drives..
LTO 4 tapes always goes to LTO 4 Drives with HCART3 density
LTO 5 tapes always goes to LTO 5 Drives with HCART density.
your configurations with the Density will do the Magic.
PS:-LTO 5 Drives can Drives data on LTO 4 tapes.. but LTO 4 Drives can not write data on LTO 5 tapes..
05-05-2013 05:41 PM
But if I load LTO4 and LTO5 tapes, netbackup wiill assign it to scratch pool, how netbckup will identify LT04 and LTO5 tapes from scrach pool and load it to corresponding drives?
05-05-2013 08:30 PM
Ignore my above question, I have found a way in assign correct density to each tape by defining a barcode rule to density match.
Thanks you.
05-05-2013 10:38 PM
Please mark Nagalla's post as Solution.
He has correctly pointed out that media and drives need to have different densities.