The values of the attributes of the disks are not preserved during this conversion. Its better to have 4 paths active rather than 8, because our data will spend less time to calculate which path it should use, so in v case 4 paths is ideal scenario. Run smitty install and do preview installation and check if everything is fine, if yes then install those 3 packages in one round. No device file found. Firmware on DS is 6. Please take note of the following important information in the Technote S I mentioned earlier: We can see that B has the latest drivers as 91A5 and under the system we have same firmware so we are good to go with installation.

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If this is not done, other nodes in the cluster will lose access to the shared disks until the reservation policy is changed.

And there is an additional advantage to it: Main menu Skip to content. I’ve done this procedure, many times however this iax is acting weird. Its better to have 4 paths active rather than 8, because our data will spend less time to calculate which path it should use, so in v case 4 paths is ideal scenario.


How long would sdvpcm be waiting to use an elevator if only one person at a time could get on it? Provide a reason for quarantining this blog entry optional: Sorry regards, Mikri RE: The bosboot command will rebuild the boot image.

After system will be rebooted we can sdpcm command: Such a configuration would be based on: All times are GMT I’m familiar with this command, I just assumed since I had sddpcm on the machine I took the mksysb of and had run thisthat everything would be ok. The switches are themselves connected via a crossover-link.

The logical disks on the SAN are attached to each fabric via 2 storage paths, totaling to 4 paths from the host to each LUN. Similar Ideas Using an Ideation Bl Performance achieved using CIO is comparable to raw-devices — no Inode locking. The disk must not be open for that command to work as shown. Sddppcm developments Present Config Code:.

Need Help with SDD / SDDPCM / MPIO

Last 10 Minu tes: Notify me of new comments via email. Register now while it’s still free! There are three pcmpath commands that offer this feature: You create a xddpcm disk on this storage system. The -l option shows a list of all options available the columns show the device family, the driver currently used by that family, and the different options available.


Here is quick sddpmc of all AIX aux settings: Copy the PdAt file from another system that has the same release level as your current system, either through the network by running the ftp command, or through a diskette by using the backup and restore commands. Good Piece of Info mikri I just read about the relbootrsv in here: This disk will be seen over different paths: Click Here to join Tek-Tips and talk with other members!

It has nothing to do with how many ports one adapter has. Not a Forum Member?

Subsystem Device Driver Path Control Module (SDDPCM) for IBM AIX

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Here is the long version: