Quantcast
Browsing all 5826 articles
Browse latest View live

Best Practice Setting up VNXe 3150

Hi Guys,I'm in the process of migrating from current AX to VNXe 3150 iSCSI SAN Storage. I'm wondering what are the best practices to implement this storage, Multipathing MPIO, default MRU, etc etc......

View Article


Re: VSA Hardware

Dear , I already checked before post but the question is about Smart Array P420i.On the HCL list is Smart Array P410i. Folks from HP told me that  P420i will gonna work.I don't know what to do because...

View Article


Re: VSA Hardware

If the Smart Array P420i RAID controller is on the HCL for VSA then any server with this controller will work. You also need to ensure the RAID type 5, 6 or 10, and the number of disks 4, 6 or 8, are...

View Article

Re: Best Practice Setting up VNXe 3150

Everything here is mostly still true: http://www.emc.com/collateral/hardware/technical-documentation/h8167-vmware-vsphere-vnxe-deployment.pdf

View Article

Image may be NSFW.
Clik here to view.

small environment - how many datastores?

Hello.  I am new to VMware and am building a relatively small virtual server environment - 2 ESXi hosts and probably 8-10 VM's.  I have a storage array in a SAN with iSCSI, CIFS, NFS capability.  The...

View Article


Re: small environment - how many datastores?

Basically you can't go wrong here, I think.  My instinct would be to create either 2 or three, though you almost certainly (assuming your array has reasonable performance/number of disks) also be fine...

View Article

Re: small environment - how many datastores?

I would like to keep it simple as possible and that suggestion makes a lot of sense.  Thanks!

View Article

Re: small environment - how many datastores?

Please DONT do 1 big datastore - its a recipe for poor performance (every IO has to go through the same queue).  Best performance will come from more datastores (I'd personally do 3-5).

View Article


Re: VAAI and VM VDisks performance

Yes, thats what I thought but then, when performing the test it did not make any difference with VAAI activated.I am using Iometer. Could it be because of the .tst file that Iometer creates which takes...

View Article


Re: small environment - how many datastores?

OK.  Thanks for the help mcowger!

View Article

Re: small environment - how many datastores?

Well let's work this through. In larger environements, the rule of thumb has always been to keep the number of vms per datastore to between 8-12, keeping in mind that this is a gross guide and assumes...

View Article

Re: small environment - how many datastores?

Part of the answer to your question is how the SAN is configured.  If you have multiple RAID groups, disk groups, or aggregates or whatever your vendor calls them, then you can put 1 datastore on each...

View Article

Re: VAAI and VM VDisks performance

Its actually probably because the performance difference of a thin disk compared to an EZT disk is very very small (sub 2%), and so very difficult to measure.

View Article


Re: How to Isolate iSCSI NW From Managment NW ESXi 5.X

PCHANDU wrote: Is there any way to restrict vmkernel0 to access the SAN. Thanks in Advance ...... ESXi will stick to the vmkernels bound to iSCSI; remove vmk0 from iSCSI port binding. I would also...

View Article

How to link Vmware datastore name and EMC Symmetrix meta ID

Hello, I'm trying to create automated web report on disk usage, purposes, etc.My Vmware collegues are mapping large meta luns against their ESX hosts from Symmetrix and then give little chunks to VMs....

View Article


Re: VAAI and VM VDisks performance

EZT allocates and zeroes the disk at the beginning whereas thin provision neither allocates nor zeroes anything. Why does it not make any difference? My understanding is that, in a thin disk, everytime...

View Article

Re: NFS Datastore timing out

Not seeing any replies other than yours.  What was the resolution to this? Thanks

View Article


Re: VAAI and VM VDisks performance

It does have an impact on performance - the ~2% I mentioned above. With VAAI, the process is just efficient enough to not have a significant impact.

View Article

Re: VAAI and VM VDisks performance

Ok. Thank you for your answers!

View Article

Re: EMC Storage and Performance

Hey mcowger, I have a VNX 5300 performance question. We just hooked up a new Cisco UCS system (over 10gb FCoE). I ran the benchmark from the SAN performance thread (link to my post here:...

View Article
Browsing all 5826 articles
Browse latest View live