Search found 5 matches

by RyanNW
Mon Aug 29, 2016 2:08 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free], StarWind x Proxmox VE SAN Integration Services
Topic: L2 Write-back cache
Replies: 9
Views: 16504

Re: L2 Write-back cache

Hello Micheal, Thanks for your update. I am testing the experimental L2 cache as well since I got some performance issues with the production L2 cache. BTW, it seems like editing the configuration file will turn the write-back mode back on for flat image file. Am I correct? Anyway, looking forward f...
by RyanNW
Sun Aug 28, 2016 4:45 am
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free], StarWind x Proxmox VE SAN Integration Services
Topic: L2 Write-back cache
Replies: 9
Views: 16504

L2 Write-back cache

Hello,

Just noticed that the management console no longer provide ways for creating L2 write-back cache. Will the option appear again in future version?

Thanks
Ryan
by RyanNW
Fri Aug 26, 2016 5:28 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free], StarWind x Proxmox VE SAN Integration Services
Topic: Problem with the Flash Cache (L2 Cache) Performance
Replies: 5
Views: 9470

Re: Problem with the Flash Cache (L2 Cache) Performance

Hello, I am facing the same situation. When using an IOMeter test file that can fit into the L1 Cache (e.g. 500MB file with 1G L1 Cache), the performance is > 70K iops. But when using a file that cannot fit into the L1 Cache (e.g. 2G file with 1G L1 Cache and 100G L2 Cache), the performance dropped ...
by RyanNW
Tue May 03, 2016 3:57 am
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free], StarWind x Proxmox VE SAN Integration Services
Topic: Best Practice for caching in a single node iSCSI SAN
Replies: 3
Views: 6804

Best Practice for caching in a single node iSCSI SAN

Hello Guys, I have just setup a single node StarWind Virtual SAN free. I have got 64GB RAM, several SSDs, and a pool of 7.2K spinning disk. I have set write-back mode for L1 cache and write-through mode for L2 cache. The performance was excellent. However, as far as I understand, we shall not use wr...