2012 R2, Storage Spaces with SAS & SSD, Tiering on SSD, 2 Nodes Hyper-V Cluster, CSV - Extreme slow access to CSV from opposite node

hi *.*

i'm experiencing weird problem.

i've fujitsu cx420 s1, sort of 2 blades server shared sas controller, 4 900gb sas disks , 2 200gb ssd disks.

installed 2012 r2 std (the server certified 2012 r2) on both blades, enabled hyper-v role, configured ss, created quorum volume without tiering, created cluster, created tiered volume, added csv, created vm on it.

if csv is, example on node1 , vm on same node, works @ full speed (200mb/sec write & 300mb/sec read).

if move csv on opposite node speed drop near 0 (600byte/sec write & 20mb/sec read)

it looks csv working in redirected mode , using hb passing traffic not @ 1gbit/sec

please help!

i'm available further info, i'm running out of time solve problem (i've deliver cluster) before fall old method of volume every vm (no csv).

thanks,

alessio

hi *.*

i'm experiencing weird problem.

i've fujitsu cx420 s1, sort of 2 blades server shared sas controller, 4 900gb sas disks , 2 200gb ssd disks.

installed 2012 r2 std (the server certified 2012 r2) on both blades, enabled hyper-v role, configured ss, created quorum volume without tiering, created cluster, created tiered volume, added csv, created vm on it.

if csv is, example on node1 , vm on same node, works @ full speed (200mb/sec write & 300mb/sec read).

if move csv on opposite node speed drop near 0 (600byte/sec write & 20mb/sec read)

it looks csv working in redirected mode , using hb passing traffic not @ 1gbit/sec

please help!

i'm available further info, i'm running out of time solve problem (i've deliver cluster) before fall old method of volume every vm (no csv).

thanks,

alessio

that's question ask clustered raid controller vendor (guess it's lsi). clustered raid controllers still pretty rare beasts (for reason) , don't think there lot of people use them , can :(

---

starwind vsan [virtual san] clusters hyper-v without sas, fibre channel, smb 3.0 or iscsi, uses ethernet mirror internally mounted sata disks between hosts.

Windows Server  >  High Availability (Clustering)