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Mar
9
comment Storage tiering and SLA models
It can be, especially with SSD making two workloads on the same hardware bottleneck at two completely different levels. You can get a blurry number by measuring latency under various types of loads. Alternatively, you can apply a number that's definitely way lower than the box is capable of spiking to but high enough for your clients. And when your phone rings, you'll be guaranteed it's because someone's hitting their QOS limit, not a box limit.
Mar
9
comment Storage tiering and SLA models
The benefit is that it prevents one app from making everyone else's latency higher. I would almost recommend capping all workload to maybe 75% what the box can do, just to ensure that spikes never hit anyone else.
Mar
7
comment Storage tiering and SLA models
QOS, at least on Netapp, works the other way. It limits performance, but doesn't guarantee it.
Mar
6
answered Storage tiering and SLA models
Mar
5
awarded  Popular Question
Feb
26
comment FC-Multipath: Which path_selector performs best?
The difference may not even be attributable to the multipath setup.
Feb
24
comment NetApp filer - lots of 'low water mark' CPs triggering on idle filer
Lucky you! What firmware level? I run those two as well...
Feb
16
awarded  storage-area-network
Feb
10
comment One SAN connecting to Hyper-V and VMware
Nope, not something I have experience with.
Feb
9
answered One SAN connecting to Hyper-V and VMware
Feb
9
answered IBM DS3400 - how replace a good disk
Feb
4
answered How do I configure a CIFS only NetApp filer for ssh public-private key access?
Jan
29
answered default NTFS permissions on NetApp CIFS share
Jan
23
answered Differences between HP and EMC SAN
Jan
23
comment default NTFS permissions on NetApp CIFS share
Right click the volume, edit, and check whether it's set to Unix. If so, change it to NTFS.
Jan
16
answered Show IO on Netapp
Jan
16
comment Show IO on Netapp
Netapp has 2 operating systems- clustered data ontap and 7-mode data ontap. They're fundamentally different, and the answer for one will not be the answer for the other.
Jan
16
comment Show IO on Netapp
It would be helpful if you could tell us whether you're using 7-mode or CDOT.
Jan
14
comment default NTFS permissions on NetApp CIFS share
Can you check whether the volume is set to NTFS security style?
Jan
13
reviewed Reject