We have two SAN fabrics (for redundancy) and are using Compaq ProLiant servers. Our storage is an HDS 9960. We want to use HDLM for failover on the HBAs on the servers and Compaq FCA-2101 adapters (Emulex LP950). Now we have the following problem.After installing HDLM, everything seemed correct. Before I saw all the disks one time but in HDLM I see all disks twice. If I get a failure on one HBA, nothing happens and service is running properly. But, if I get a failure on the other HBA I loose all disks. I changed the HBAs but I have the same problem. We are using W2KSP3 and HDLM 4.0/C with MSCS. Can you help me?
>dlnkmgr set -pchk on -intvl 10 (turns on path healthcheck, and checks every 10 min. value is between 1-30 min.) >dlnkmgr set -afb on -intvl 15 (automatically turns on a failed path if possible, and tries every 15 min. value is between 1 -1440 min).
If you have not turned these functions on and you lost your first path, when you lose the second one all paths are unavailable. You can also manually turn a path back online by using this command:
>dlnkmgr online -pathid "path" (path is the path number, like 1 or 2)Hope this helps.
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This was first published in June 2003