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Questions tagged [netapp]

Netapp makes storage: primarily, their Data ONTAP series which does network attached and block storage. Since they acquired Engenio, they also sell block-only devices.

NetApp filers are a popular model of network attached storage (NAS) device. NetApp also sell software products catering to the storage reporting and monitoring market niche.

A NetApp filer is a standalone appliance which runs an operating system called ONTAP, and has it's own specialist command set, and is loosely based on BSD. Their primary service offering are for network storage, via CIFS and NFS.

They've also diversified into direct attached storage via iSCSI and FCoE.

Filers are typically configured with a custom variant of RAID-4, that NetApp call RAID-DP. Essentially RAID-4 with a second parity drive.

1 or more RAID groups are turned into an aggregate - a pool of storage.

Volume are created within an aggregate, and may be thin provisioned or deduplicated.*

Qtrees are created within volumes a top level - they're quotaed directory structures. (Enforcing a quota is optional - qtrees merely enable the quota tracking mechanism).

  • Filers deduplicate at volume level, because this allows volumes to be treated as standalone containers for the purposes of migration around a cluster.
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Are there no downsides to NetApp SAN solutions other than price?

We have pretty much decided on a NetApp solution for our first SAN. Given that, I've been tasked with finding as much reason not to go with NetApp as I can. We like to do this A) so we know what we're getting into and B) so we aren't clouded by the…
Daniel Lucas
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Can NetApp Snapshots be used as Backups?

Our shop relies very heavily on NetApp Volume Snapshots for backups. We use traditional agent-based tape backups for some of our data but by and large we rely on the Snapshots for the majority of our systems. Furthermore we do not have a rigorous…
user62491
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Block-level deduplication on Linux

NetApp provides block-level deduplication (ASIS). Do you know any filesystem (even FUSE-based) on Linux (or OpenSolaris, *BSD) that provides the same functionnality ? (I'm not interested in false deduplication like hardlinks).
Benoît
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Maximum Number of Files in a Single Directory for Netapp NFS mounts on Linux

On an older Linux box I have, there is an NFS mount of a Netapp. Once there are 100k files in a single directory on this box, files can no longer be written. Anyone know what might be causing this? I have been told symbolic links can still be…
Kyle Brandt
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NetApp erroring with: STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT

Since a sitewide upgrade to Windows 7 on desktop, I've started having a problem with virus checking. Specifically - when doing a rename operation on a (filer hosted) CIFS share. The virus checker seems to be triggering a set of messages on the…
Sobrique
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VMWare ESX and guest settings for Netapp cluster failover

If I'm running VMWare 5.x on FC [edit] LUNs presented from a Netapp running ontap 8.x in 7 mode, what steps should I take to ensure that the VMs can withstand a worst possible case cluster node failover? HBA settings? ESX settings? Modifications to…
Basil
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Folder Showing up as a File when viewed via Samba on a NetApp

we want to change files on our NetApp file server, and on every change of these files - a Debian machine duplicates the files to two other shares. Because of the duplication method we're using lsync, we need to mount the Samba share (of the NetApp…
akalter
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NetApp NAS: How to enable encryption?

What are the commands to enable disk encryption on a NetApp NAS, can this be done per disk/array?
Lucas Kauffman
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Unable to list new files on a cifs share with ls *

I have an old HP-UX system running version 11.11, it has a cifs mount configured to a netapp filer. In the past several days we've been seeing some odd behaviour for the share where files can be created & accessed if the full path is used, but…
JMP
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NetApp Backup Strategy - Snapshots to SnapMirrors to Tape?

In a previous question we discussed the pros and cons of relying exclusively on NetApp snapshots for backups. I now find myself in this situation as our aging legacy Symantec BackupExec tape server catastrophically failed while rebuilding its RAID-1…
user62491
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Netapp raid scrubbing on a V-Series

My V-Series NAS is running ontap 7.3, and gets all its disk from a SAN. LUNs are provisioned to the Netapp, which puts them into a raid-0. The SAN itself, of course, uses RAID with scrubbing and prefailure analysis. Basically, we use the SAN to…
Basil
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Should I worry about Split I/O in a SAN?

We have a NetApp Storage system presenting LUNs to a few Hyper-V clusters. When running a system performance trace (in perfmon) on a 2008 R2 there's a warning about a "high level of Split I/O". Reading up on split I/O I find that this is most likely…
john
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NFS client has unbalanced read and write speeds

I've got a NetApp as my nfs server, and two Linux servers as the nfs clients. The problem is that the newer of the two servers has extremely differing read and write speeds whenever it is doing read and writes simultaneously to the nfs server. …
Banjer
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Switch Netapp expansion FC port from target to initiator

I have a v3200 with a 4 port FC expansion card. I am trying to switch one (or all, doesn't matter) of those ports from target to initiator. When I execute fcadmin config, I get: Local Adapter Type State …
Basil
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How to not move permissions on fileserver file move

I have a problem with a NetApp file server with Windows XP clients. The files are on a single SAN drive. The users regularly move files from \\storage\share to their personal folder at e.g. \\storage\myfolder. This is fine so far, but it becomes a…
Dennis G
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