In a SAN environment when dealing with external storage concepts such as EMC BCV’s, you’ll often have a request to create volumes on two different machines that are identical so replication on the back-end can occur. When you look at a LUN presented to Solaris, it’ll appear with a cryptic name like the following: [...]
A number of opensolaris communities have asked their members for feedback, and the list of technologies they would like to see added in the future. The storage community received a ton of feedback when they asked the community for the list of features they would like to have added to opensolaris, and this feedback was [...]
A while back I wrote an article titled dynamically growing a Clariion LUN with Solaris. In the article I described how to update the VTOC on a UN that was resized on the storage array. One of my colleagues came to me a few weeks back and told me the procedure was not working, and [...]
I came across the sdparm utility while surfing the web last weekend. This super useful utility can be used to display and modify SCSI device parameters, and is the best tool I’ve found for dumping SCSI mode and VPD pages. I wish sdparm would have been around when I was reading through the SBC documentation [...]
While reviewing the system logs on one of my SAN attached servers last week, I noticed hundreds of entries similar to the following: Aug 28 13:10:14 foo scsi: [ID 243001 kern.warning] WARNING: /scsi_vhci (scsi_vhci0): Aug 28 13:10:14 foo /scsi_vhci/ssd@g600a0b80001fcb370000010646d3d207 (ssd21): Command Timeout on path /pci@9,600000/lpfc@1/fp@0,0 (fp3) Aug 28 13:10:14 foo scsi: [ID 107833 kern.warning] WARNING: [...]
The /devices and /dev directories on one of my Solaris 9 hosts got majorly borked a few weeks back, and the trusy old `devfsadm -Cv’ command wasn’t able to fix our problem. To clean up the device tree, I booted from CDROM into single user mode and manually cleaned up the device hierarchy. Here is [...]
