Re: disk availability in VTL

2011-10-30 Thread Mehdi Salehi
Thanks Remco, VTL needs disk space to provide virtual cartridges and my concern is the availability of this disk space. You are right! Backup data availability could be addressed in higher levels like TSM copypools, but I am looking for inherent disk availability features in IBM VTLs'

Re: disk availability in VTL

2011-10-30 Thread Xav Paice
On Sun, 2011-10-30 at 09:35 +0330, Mehdi Salehi wrote: Thanks Remco, VTL needs disk space to provide virtual cartridges and my concern is the availability of this disk space. You are right! Backup data availability could be addressed in higher levels like TSM copypools, but I am looking for

disk availability in VTL

2011-10-29 Thread Mehdi Salehi
Hi, What is the recommended method for disk availability in VTLs? Do IBM VTLs support host-based mirroring, I mean something like LVM in VTL layer, not the copy services between disk subsystems? Thank you, Mehdi

Re: disk availability in VTL

2011-10-29 Thread Remco Post
On 29 okt. 2011, at 11:55, Mehdi Salehi wrote: Hi, What is the recommended method for disk availability in VTLs? Do IBM VTLs support host-based mirroring, I mean something like LVM in VTL layer, not the copy services between disk subsystems? Hi, AFAIK there are two types of VTLs. The