This post is more than 5 years old
5 Posts
1
4559
April 22nd, 2015 11:00
Lun Trespass - VNX
Hello All,
I have luns that are on a VNX that are trespassed. The luns are in a pool, raid5 and are thick.
naviseccli -h spaxxx getlun -name -trespass
I was wanting to trespass a single lun and the below didn't work:
naviseccli -h spaxxx trespass lun 60
or
naviseccli -h spaxxx trespass 60
I know I should be able to trespass all with the below for both sp's:
naviseccli -h spa/bxxx trespass mine
Also, Im trying to find if there will be any risk with trespassing thick luns with pools? Any good docs for trespass? All I can find on google is just some threads....
brettesinclair
2 Intern
•
715 Posts
0
April 23rd, 2015 05:00
couple of reference docs for you
https://emc--c.na5.visual.force.com/apex/KB_BreakFix_1?id=kA1700000000Oys
https://emc--c.na5.visual.force.com/apex/KB_BreakFix_1?id=kA1700000000QMJ
odin101
5 Posts
0
April 22nd, 2015 12:00
I believe I know why the single trespass cmd failed, I need to be on the sp that the lun will be trespassed to, but would like to still know more on the risks before committing. I checked the performance charts and do see more usage on say spa vs spb, which is the reason for wanting to move the luns back to their default sp. There are quite a few luns trespassed.
brettesinclair
2 Intern
•
715 Posts
2
April 22nd, 2015 21:00
yes, you need to execute the trespass mine against the target SP.
As far as trespassing goes.... If you're worried, do them in batches from Unisphere. I've never had an issue doing it, but if i was considering doing a whole lot, I'd probably choose a time that's non-peak.
Always try and have the Default & Current owners the same as the Allocation owner to avoid i/o having to traverse the SP's CMI bus to reach the private FLARE LUNs for the pool, possibly causing latency, bottlenecks etc, although VNX2 doesn't suffer from this as much.
Always good to have consistency though.
I'll see if I can locate a ref document.
odin101
5 Posts
0
April 23rd, 2015 06:00
TY very much Brett