SCSI-1: The original specification developed in 1986, SCSI-1 is now obsolete.It featured a bus width of 8 bits and clock speed of 5 MHz.; SCSI-2: Adopted in 1994, this specification included the Common Command Set (CCS)- 18 commands considered an absolute necessity for support of any SCSI device. HPE told me the Storevirtual hardware appliances are going to EOL and will not be replaced (only VSA will be available). In a new environment the iSCSI network (today it is 1Gb) will be replaced with 10Gb, and I'm looking for a small switch. I've found HPE Officeconnect 1850 6xgt but I'm n ot sure is is suitable for iSCSI connections.
Tips on tuning VMware ESXi for EqualLogic SANs.
Cisco Scsi & Raid Devices Driver Download For Windows 10 Windows 10
- Install Dell MEM
- Download from here: https://eqlsupport.dell.com/support/download.aspx?id=1484
- Important: Unzip the package and inside the package is another zip file. That’s the file that should be uploaded to a datastore so that it’s accessible from the host.
- SSH into the host and run the following (substituting your version of MEM). I found that sometimes I needed to use the actual path name instead of the datastore friendly name in order to work:esxcli software vib install–depot/vmfs/volumes/vmfsvol/dell/dell-eql-mem-esx5-1.2.292203.zip
(There are two dashes in front of “depot”, WordPress may format it differently.) - Before rebooting complete next section.
- Disable large receive offload (LRO)
- Fist check to see if it’s enabled: esxcfg-advcfg -g /Net/TcpipDefLROEnabled
- If enabled disable it: esxcfg-advcfg -s 0 /Net/TcpipDefLROEnabled
- Reboot
- Tune the virtual and physical networks
- Change the MTU to 9000 on the virtual iSCSI switch and virtual iSCSI NICs
- Change the MTU on the physical iSCSI switches. On some Cisco switches this is a global config and others this is an interface config (and possibly both)
- Tune the iSCSI Initiator
- Go to the host -> Configuration tab -> Storage Adapters -> iSCSI Initiator -> Properties -> Advanced
- Change LoginTimeout from 5 to 60
- DelayedAck should be unchecked (Update: for the delayed ACK setting to take effect, the static and dynamic iSCSI discoveries need to be deleted and the server needs to be rebooted.)
- Go to the host -> Configuration tab -> Storage Adapters -> iSCSI Initiator -> Properties -> Advanced
- Tune the VM
- Put all VMDKs on a separate virtual SCSI/SAS controller (i.e. node 1:0, 2:0, 3:0, NOT 1:0, 1:1, 1:2)
- Format the partitions with 64K cluster (allocation unit) size
- For VMs that need high IOPs, convert your virtual storage controller from LSI to Paravirtual. This is easiest by first changing the controller for the data drive and rebooting (so that drivers can be installed), then convert the boot drive.
- Test your VM speed with ATTO Disk Benchmark