Reputation
7,083
Top tag
Next privilege 10,000 Rep.
Access moderator tools
Badges
19 59
Newest
 Caucus
Impact
~215k people reached

Aug
26
comment What's the minimum latency achievable for a shared drive?
I disagree- I think this is on topic. Maybe badly worded, but what's really being asked here is how to minimize latency for file access between VMs in the same hypervisor.
Aug
25
revised How to delete files on NetApp ONTAP 7 by using CLI
added 125 characters in body
Aug
25
revised How to delete files on NetApp ONTAP 7 by using CLI
added 12 characters in body
Aug
25
answered How to delete files on NetApp ONTAP 7 by using CLI
Aug
24
awarded  Caucus
Aug
24
comment Is it possible for a UNC path to a SAN be disconnected through overwhelming I/O?
UNC paths are for network drives. SAN provides SCSI LUNs. Unless you clarify a specific scenario that you are dealing with, this question should be closed.
Aug
19
comment NetApp 2520 and two vmware servers
We need to know whether you want to use FC (SCSI LUNs) or NFS for the VMWare datastores.
Aug
18
awarded  raid
Aug
17
comment Best practice for 24 Disk Array
That's a rather vague assertion, Tom. A good counter example would be Netapp, which doesn't do raid 10 and hosts a large number of databases across their install base. Raid 10 is something you do when you're using internal disk, for sure, but I wouldn't go as far as to say that the "storage community as a whole" recommends it. Each vendor has their own recommendations.
Aug
14
comment Best practice for 24 Disk Array
People who are voting to close this: this is not an opinion based question, it's a best practices question. There is an answer from the vendor, and it's on-topic at serverfault.
Aug
13
comment Best practice for 24 Disk Array
I'm not recommending raid 5, Hagen. I'm recommending raid 6. And Tom, the question states that they have 24 600GB SAS disks. Not a large array of big slow disks, nor any SSD (no matter how established the technology). This question is very explicit and clear.
Aug
13
comment Best practice for 24 Disk Array
Your flag is incorrect- this is a specific question with a specific and correct answer. There's a redbook from IBM that contains the information requested. Also, your comment about raid 5 and 6 is incorrect for enterprise storage. Rebuild times on a 12 drive 600GB raid are not the multi-week rebuilds you get on 7200 4TB drives. Additionally, raid 50 doesn't exist on this storage, they use wide striped pools containing extents from multiple raid groups of raid 5, 6, or 10.
Aug
13
comment Best practice for 24 Disk Array
Rebuild times on a 600GB SAS disk are not huge. Your advice is true for local storage of 7200 RPM, not enterprise storage with a large controller write cache and small, fast spindles. Also, For VMWare 5.5, two LUNs per datastore is recommended, and wide striping should be used whenever possible to make each LUN have access to the underlying performance of all the spindles, not just a single array.
Aug
13
answered Best practice for 24 Disk Array
Aug
11
answered iSCSI to NetApp FAS: high latency for write load
Aug
5
comment NetApp NFS Exports with all_squash
Oh, I was assuming this was clustered data ontap. Is that true? Or is this 7-mode?
Aug
4
comment NetApp NFS Exports with all_squash
I don't know the answer to this from experience, but I've started looking for one here: library.netapp.com/ecmdocs/ECMP1366835/html/index.html
Jul
28
answered NetApp Performance Archiver failed to close file
Jul
24
comment SAN storage I/O issues
Unless you have admin access to the SAN and know how it's configured, this is the wrong question to ask.
Jul
21
reviewed Approve mod-dims tag wiki excerpt