Reassigning a HP DL360 G7 5620 as a Hyper-V Host
Really grateful if you could advise me.
I have one of these:
HP ProLiant DL380 G7 E5620 1P 6GB-R SFF SAS 460W PS Server/TV (470065-479) specifications - HP Small & Medium Business products
at present with 24Gb of RAM, an extra processor - Xeon 5620, and 8 x 300GB in a RAID 10 array..underutilised at the moment running 4 VMs.
I'm hoping to build a Hyper-V cluster by buying another 2 of these DL 380 G7s and a SAN, the aim is to build the following for summer:
1) All 3 will have 2 x 5620 Xeons, 96Gb RAM and 2 x 72GB 15k SAS running Hyper-V OS, plus maybe a 10Gbe Ethernet card for Host to network communications
2) Linked to SAN (maybe a HP P2000 G3 - iSCSI for lower cost vs FC and 10Gbe now and we at about 25mb /sec..bugger all !)
3) I'm still not 100 percent comfy with running everything on such a setup (ideally I will need another SAN to replicate, etc etc) but I hope to move say SIMS, finance software, WSUS, Print server, intranet server,Impero, Sharepoint, Apps server, Terminal server to this cluster, with DPM covering all the backups (which DPM is doing very well now)
Question I have is:
1) Does having a big write back cache for your controller help? The DL 360 G7 comes with P410i with 256mb cache. I have herad from a VMware consultant that ideally have a 512 Battery backed cache for max performance..would Hyper-V apply too?
2) considering the low IOPS of my network, would it be ok to use the iSCSI for storage traffic and 10Gbe for host to network traffic (I have netgear cores with 10Gbe interfaces - figured I would normally assign one physical NIC per VM, having 10Gbe might consulidate cabling a bit.
3) Also would 2 x HP V1810-24g as storage switches switches for the Hyper-V cluster be ok? Or would one want something beefier?