Is see that some disks have a failed path on fscsi2. Other disks are just running fine with a path over fscsi2.
May I conclude that the hardware is working and that ther is a problem with the zoning of the SAN? Or could HW still be a problemen? All LUNS are provided from the same SAN storage box meaning that if hdisk23 is available on all paths, the cables between the SAN box and the server are correct.
you get each disk over 2 fc adapters to the vio server, and each fc adapter is zoned to two storage controllers
depending on the san design, this may be due to a temporary problem with the fc adapter, or a san switch
first I would try to get the paths online manually
Code:
smitty mpio -> MPIO Path Management -> Enable Paths -> Enable Selected or All Paths
and choose all paths, then run the lspath command again
depending on the storage subsystem you may have to work with the device drivers (sddpcm) for example
if this happens more often, you may want to open an ibm call, but first talk to your storage/san admins
Have you always had each of your fibercards zoned to two different storage controllers? When we had dual fibercards and we had a one-to-one mapping between our fibercards and the storage controllers. Then we used MPIO to put the 2 paths (instead of 4) together. I didn't even know doing it the way you are was even possible.
it's been a while when I was working with rdac, but afaik each lun is presented by one storage controller, and in case the adapter zoned to this controller fails, the storage moves the lun to the other controller, which leads to a few seconds of time where the lun is not accessible
but our zoning was different, each adapter just saw one controller, maybe this has changed in the meantime
hi, anyone can help on this piece of truss output?
8094: 0.7028 write(4, 0x0043BE90, 236) = 236
8094: T S H \0\0\0EC020101\0\0\0\0\0\0\0\0\0 "02\0\0 303\0\0 I D
8094: \f %\0\0\0\0 2\0F67F\0\0\0\0 @06FFC99A ;
8094: L D6\0 303
8094: ... (6 Replies)
I'm writing a Korn script but am having trouble because the shell interprets the asterisk in this case. Can anyone tell me if there is a way to fix this so that grep takes in STDIN without the interpretation?
line="30 09 * * 1-4 /home/user01/bin/start"
echo "$line" | grep 'start' (16 Replies)
Can anyone recommend me some reading material surrounding how AIX handles LUNs:
- with and without MPIO installed
- with and without SDD or SDDPCM installed
Where does lspath sit in all of this (MPIO layer?). Can a system be built with just MPIO software? Is MPIO software even needed?
I guess... (0 Replies)
Hi,
I am not sure what I am doing wrong but I am messing up some logic here. The input file is something like this:
*___String Type A Here___String Type B Here___123
*___ ___String Type B Here___123
*___ ___String Type B Here___123
*___ ... (6 Replies)
Hi Guys,
This is really really urgent. Am looking out for some quick answers.
I'm developing a DNS Resolver client that interprets DNS Query repsonses & pass on the needful to DNS applications.
When an ENUM query(modified to an nslookup naptr query) is issued & an NAPTR RR(Resource Record)... (1 Reply)
I have used SAR -b to get some Unix cache / buffer metrics and the results are confusing me a bit.
The pread/s & pwrit/s are showing 0. However the lread/s and lwrit/s are showing figures. I note also that the bread/s and bwrit/s are showing figures. I believe that pread/s and pwrit/s is not... (3 Replies)
I executed the following command in the korn shell:
$ variable1="qwerty" ls | sort
and the shell executed the 'ls | sort' command.
I would have expected an error message from the shell, but instead of that the shell ran the 'ls | sort' command and didn't realize the variable assignement. ... (1 Reply)
