ITonCloud

You’ll want the following Microsoft hotfixes to resolve some interesting bugs (one of which prevents Compressed Folders from working):

• KB974090
• KB975512
• KB979223
• KB981603
• KB981872
• KB982860
• KB983458
• KB983528
• KB983620
• KB2028827

Cheers,

Leo

Hi,

I’ve lately had little to do with VMware, mainly because Xen has become free and with the pricing of modern servers, Xen makes sense for small business over VMware. So we’ve been doing a lot of Citrix XenServer work.

Furthermore, we are a Hitachi partner so we sell Hitachi SANs.

The most recent Hitachi deployment I did with Xen was an iSCSI HDS SMS100 baby array (8TB, RAID 6). iSCSI multipathing is an absolute bitch to use on Xen 5.5 as there is no way to register multiple paths in the GUI.

You need to append the /etc/rc.local file to force Xen to log in and scan iSCSI targets, then restart the multipath counter:

iscsiadm -m discovery -t sendtargets -p 10.27.2.251
iscsiadm -m discovery -t sendtargets -p 10.27.2.252
iscsiadm -m discovery -t sendtargets -p 10.27.2.253
iscsiadm -m discovery -t sendtargets -p 10.27.2.254
iscsiadm -m node -L all
service multipathd restart
/opt/xensource/sm/mpathcount.py

Obviously change the IPs above to the IPs of the iSCSI ports on your SAN.

Then either restart the host, or run the above commands manually to log your host into all the iSCSI ports on the SAN – once the commands complete, you should be able to see all paths listed as active in XenCenter.

Cheers,

Leo