Thanks all for the answers and suggestions, some of which confirmed what I found out myself in the mean time: the array-support for Clariion was not included by default in the VxVM installation ("vxddladm listsupport |grep DGC") So I downloaded from the Veritas web site the package "CLR-ASL", which arranged that the disk seen through 2 HBAs, was properly identified by VxVM as the single and same disk. Some people remarked that we use Qlogic-2300 cards and suggested that could have been the cause of the 'problem': let me confirm that I have connected a large combination of SUN servers with different HBA types, using different drivers, to EMC disk arrays, directly attached or via SAN switches. It is only a matter of -indeed- properly veryfing if a certain combination server/HBA/driver (with or without VxVM and/or EMC's PowerPath) has been validated by EMC, and testing out the exact installation order of packages, configuration files etc to get the thing work. Often EMC could not indicate the precise order of installations or configuration details themselves. It's just a bit of initial work to find the right combinations, but then you're done for any further machine that you install with the exact same combination. Do never forget to do the ultimate test : force I/O to the LUNs (like a "verify" in "format"), verify via which HBA the traffic is going, and pull the plug from that HBA : the I/O should just block for a few seconds, then continue over the other HBA. Powerpath is handy to know what HBA-path is being used, but only the full-featured $$-version provides dual-HBA load balancing of the I/O traffic, the normal $-version gives just path-failover, which can only be done using VxVM-DMP. Or the Solaris-bundled "mpxio", for that matter. Cheers Rob -----Original Message----- From: sunmanagers-bounces@sunmanagers.org [mailto:sunmanagers-bounces@sunmanagers.org] On Behalf Of rob.de.langhe@belgacom.be Sent: 24 January 2005 13:57 To: sunmanagers@sunmanagers.org Subject: adding EMC-CX600 LUN: format gives "drive type unknown" Hi, we have a E15K domain running Solaris-8, and connected to a SAN via QLogic-2300 Host Bus Adapters. A bunch of EMC-Symmetrix disks are already made available to the server and being used for filesystems through VxVM. Now we need to add an extra LUN coming from an EMC-Clariion CX600 array. The new LUN is discovered with SCSI-probing, but showing up in "format" as a "drive type unknown" ... When I try to let "format" "auto-configure" the disk type (option "type", then select "0. Auto-Configure") I get the message Auto configure failed Within "format", the "inquiry" option yields Vendor: DGC Product: CX700 Revision: HP03 In VxVM, I have added the JBOD id with vxddladm addjbod vid=DGC pagecode=0x83 offset=8 length=16 The people here told me that in previous attempts to make new Clariion-LUNs correctly identified by Solaris on a machine that has already Symmetrix-LUNs, was only after a reboot ... Which is surely not the procedure I want to adopt (production servers, hey) Any suggestions what can be done about it ? TIA Rob **** DISCLAIMER **** http://www.belgacom.be/maildisclaimer _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers **** DISCLAIMER **** http://www.belgacom.be/maildisclaimer _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagersReceived on Tue Jan 25 03:29:33 2005
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