Search found 7 matches

by BartHermans
Sat May 24, 2008 2:47 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free], StarWind x Proxmox VE SAN Integration Services
Topic: i/o read/write caching
Replies: 27
Views: 45631

Hoi Anton, We bought us a StarWind version and now we're using it with ESX 3.5 (client). It works well as I already mentioned. I've found battery backuped RAM drive (PCI slot) for PC's http://www.anandtech.com/tradeshows/showdoc.aspx?i=2431&p=5 The physical limitation is 4 memory modules and it'...
by BartHermans
Fri Apr 25, 2008 1:06 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free], StarWind x Proxmox VE SAN Integration Services
Topic: i/o read/write caching
Replies: 27
Views: 45631

Anton, Our first performance tests were bad, but we've found the bottleneck. We used a RAID5 set with 3 500GB disks. After tuning the NIC's with the tool TCPOptimizer (measuring with iPerf) and changing the RAID5 to a RAID0 we can finally talking about performance. The bottleneck was NOT StarWind bu...
by BartHermans
Thu Apr 24, 2008 8:14 am
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free], StarWind x Proxmox VE SAN Integration Services
Topic: i/o read/write caching
Replies: 27
Views: 45631

Anton, We're aware of the extensive SMB caching, but also with a new file (not copied yet) the time that the copy is twice as fast on a share on the same server. But maybe I'll have to do the test again to be sure. The copy to the iSCSI disk is infact stable on ALL the way file is copied. PS.: our i...
by BartHermans
Thu Apr 24, 2008 7:45 am
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free], StarWind x Proxmox VE SAN Integration Services
Topic: i/o read/write caching
Replies: 27
Views: 45631

Anton, We've done the tweaking of the TCP stack as you described for a better network performance. We've done some measuring : a 1GB file copy to a normal share on the StarWind server and a 1GB file copy to an ISCSI disk (image file) on the StarWind server. The file copy to the share is twice as fas...
by BartHermans
Thu Apr 17, 2008 6:55 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free], StarWind x Proxmox VE SAN Integration Services
Topic: i/o read/write caching
Replies: 27
Views: 45631

Anton, thanks for the quick replies. We've installed the trial version on a server with 2x RAID5 1.4 TB volume. 3 NIC's are connected to a dedicated GB switch, a fourth is connected to the LAN for domain purposes. We had some difficulties with a iSCSI initiator on a Win2000 server, but W2K is not th...
by BartHermans
Wed Apr 16, 2008 4:11 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free], StarWind x Proxmox VE SAN Integration Services
Topic: i/o read/write caching
Replies: 27
Views: 45631

Anton, At this moment we use one HP EVA4000 storage in conjuction with HP Blade VMware ESX servers. We want to offload and move some data to another storage tier using the same benefits of a FC SAN. Furthermore we are interested to use the replication possibilities. Your product has the capabilities...
by BartHermans
Tue Apr 15, 2008 3:28 pm
Forum: StarWind Virtual SAN (VSAN) [+Free], HCI Appliance (HCA), Virtual HCI Appliance (VHCA) [+Free], StarWind x Proxmox VE SAN Integration Services
Topic: i/o read/write caching
Replies: 27
Views: 45631

Hello Anton. We're planning to test StarWind in our labo environment. So this forum gives us already an idea what to check for. Even before reading all this information, we have doubts about the (write) caching mechanism. Can you tell us what will happen to the data or volume if the M$ system (iSCSI...