Let's say I do full backup of a DB in daily basis. Will 2nd full backup data be processed against the deduplication Database which is created by first day full backup? If yes, the 2nd day data should be reduced a lot. Correct?   My second question: I read ALT document, and in which it says that we should turn off the compression on the backup software. How do I know or to be sure of that ALTVALUT deduplication will work more efficently?    Thanks! ... View more

Without using any additional backup software. , Either via FC or Ethernet?   For instance, can I use ndmpcopy to  backup FAS shares to any remote NFS FS, as a valid backup method? ... View more

After installed SnapDrive for Unix 5.3.1, when I run the command, it just hung there, and staying there forever. NFS Protocol only.  Please help!   # snapdrive storage show -all  WARNING: This operation can take several minutes           based on the configuration.     I can run snapdrive create snapshot... without a problem.     ... View more

FAS8080 20 CPU's 128GB has flash pool configured. All SAS disks   For this configuration, in general, how many IOPS can this filer handle or maximum IOPS before we see the perofrmance degraded?   Thanks for your input! ... View more

I am getting the following error. What name should  I use after the option of "-filer"? I tried cluster name, vserver name, and node name, all result the same error. What is the right sytax? Please help!    # snapdrive  storage  list -filer cluster_name 0002-691 Command error: Invalid switch for NFS only filespecs   ... View more

We use an external DNS load balancing to balance the load amount LIF's. in /etc/fstab file, we use name.doamin.com to reference NFS server. Any way can I find out what IP currently this name.domain.com is using, and to mount the NFS volume?   Thank you! ... View more

Suppose I have taken two snapshots, one at 1pm, the other at 3pm, then at 2pm, I created a new file, and removed it thereafter. Can any one of these two snapshots record the change made at 2pm?   Thanks you for your inputs! ... View more

We are thinking to use SMO, cloning a Oracle DB, then mount it on the other host. How do we do that?   Thank you in advance for your inputs! ... View more

If I understand correct, SMO can be implmented on either Linux or Window platform. Orace is running on Linux here in our shop. So, which platform should we implement SMO on? and why?   I think we should use Linux version, only because Oracle is running on Linux, but I cannot tell why in-depth. Wish somebody who has experience here can provide any reasons.   Thanks! ... View more

for total of 36 SSD disks ( one and half shelve) on 2 AFF HA nodes, how would you create aggregates, and how many for spares?   currently, half of them (18 ssd's) is owned by node-1, and the other half is owned by node-2     thanks! ... View more

One of good thing the following script to do is to list iSCSI LUN's that have either single or no active paths to the filer. Can somebody please let me know what OnTap commands would show the same thing, preferrably, or Powershell commands  Thanks!   The script is for scanning any potentional issue before upgrade.     http://community.netapp.com/t5/Virtualization-and-Cloud-Articles-and-Resources/How-to-Check-Data-ONTAP-8-3-2-Upgrade-Requirements-Using-a-PowerShell-Script/ta-p/105576 ... View more

Data lost on primary filer, I would have to restore from snapmirrored volume on DR, but to a different volume. I am thinking of using "snapmirror restore.."   can anybody please help on details of this command, or any commands could do the work?   Thanks! ... View more

Within System Manager, or OnCommand Performance Manager, you can find SVM based performance widget, show us for instance latency and IOPS. Because of this, some people here believe we should create SVM's for each project or application, therefore we can quickly know how they are performed, then focus on the application not performing well. Some other people feel Since SVM's are all logical entities, performance widget in SVM basis provide us an idea on how an project is performed overall, but not so much insightful. When you need to troubleshoot the performance issue, we will still have to drill down to elements, ex, aggregates, volumes, and Nodes. How applications performed, not necessarily could determine the root cause. The criteria on whether or not create a SVM should not based on the widget. What is your opinion? ... View more

After installed REDHAT OS on a used to be ESX host, we still can see the old storage LUNs, in addtion to the new NetApp LUNs.   It could be caused by the same WWPN number on the same HBA card, and the old zone on SAN switch is till active. Please confirm if it could be the cause, or any other courses you can think of?   One way to resolve it is to remove WWPN from old zoning configuration on the switch. My question is, is there anything I can do on the host, to comopletely deconfigure these old LUNs?   Thank you for sharing! ... View more

With NetApp volume/lun provisioning to Unix hosts, are there needs to mirror root and bootable lun on hosts side? Snapshot can make up data loss, and the storage can provide ways to protect data, but in terms of protecting bootable lun on the host, I think we still should create the mirror to root.   What would you think? ... View more