"Richard L. Rhodes" wrote:
- Performance I'm getting? For sequential writes, like when I
create an oracle tablespace, I get between 15-20 MB/s. Random writes
NFS v2 and v3 handle writes differently. Which version do you use, do you use UDP or TCP and with what packet sizes?
- The one problem I do have, is that during a high sequential write
load, like creating an Oracle tablespace, the high sequential write rate locks out other processes from doing I/o to the netapp. For example, during a create of a 2gb db file, If I (in another window) try and do anything that does I/O, I can wait for 5/10/15 seconds for the command to come back. I'm not sure why this is, but I think this is a problem in AIX, NOT the netapp - because if during the massive sequential writes I try and access the netapp from another computer I get great response. AIX must be queing NFS I/O's or something - which doesn't make sense!
How many mount points do you use? NFS will block if you run everything through one mount point. bCandid, a Usenet news software vendor, recommends spreading activity across as many mounts as practicable. It does help performance here, though I still have trouble. If you do use just one mount point, try re-working your client configuration to use several mounts.
- It still buggs me that you can't edit config files on the netapp
through the console. Your have to mount the netapp to a system and edit the files from that system. This makes no sense to me. Even a stupid line editor would be better than nothing!
I agree. I'm glad that ONTAP finally (in 5.3.4 and later) has command-line history.