Backup & Recovery

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  • 1.  Data Recovery - CIFS or iSCSI ?

    Posted Feb 22, 2010 08:40 AM

    Hi,

    which Solution is faster ? Backup to a Cifs Share or to a iSCSI Volume ?

    We have a Qnap NAS (809) as Backup Target, which support iSCSI (Software Initiator) an many more (NFS, CIFS etc). We have 12 vm's to save between 18:00 and 06:00.



  • 2.  RE: Data Recovery - CIFS or iSCSI ?

    Posted Feb 22, 2010 08:39 PM

    A good rule of thumb is the following in terms of performance in descending order - but your mileage based on the actually underlying hardware that backs each storage solutions (SATA vs SAS, rpm, # of spindles, controller type, software, etc).

    1. vmfs on iSCSI or FC

    2. vmfs on nfs

    3. cifs/smb

    Other items that help overall backup performance is ensuring the VMs being protected are upgraded to HW7 and the snapshots can be hot- added to the appliance (the VDR logs will tell you if this is the mechanism it is using or it is backing up over the network- which would be slower)



  • 3.  RE: Data Recovery - CIFS or iSCSI ?

    Posted Feb 23, 2010 02:32 PM

    Using CIFS we have the deduplication too ?



  • 4.  RE: Data Recovery - CIFS or iSCSI ?

    Posted Feb 23, 2010 07:06 PM

    VDR deduplicates data to all supported destination disks, including CIFS