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HP-UX 11.31 3Par - LVM Host Base Mirror a-sync

Valued Contributor

HP-UX 11.31 3Par - LVM Host Base Mirror a-sync

Hi

 

we got sone  superdomes  ,

currently testing with 3Par storage :

we need  for  a  certain  databases  ( oracle DB ) the  highest speed .

 

former  we had XP Storage  with ( A-Sync) CA .

 

we prefere to use  LVM HostBase Mirroring .

are  there  any possibilities  to set the  LVM HBM also A-sync ??  taking the  risc for corrupt data  we know  ..

 

we notice  the  latecy between the  3Par is  slowing down ....

 

can anyone advise us  in this  ??

thanks .

 

3 REPLIES
Honored Contributor

Re: HP-UX 11.31 3Par - LVM Host Base Mirror a-sync

As far as I know, no, you cannot force mirrors to async mode with Mirror Disk/UX.

 

I think you would actually have poorer performance with host-based mirroring than with array based mirroring.

 

If you are noticing a performance lag with your 3-par deivce, perhaps that is worth a call to HP.

Valued Contributor

Re: HP-UX 11.31 3Par - LVM Host Base Mirror a-sync

OK Thanks  .

The  3 Par work  fine .

But even a small delay  of 2mS  ( latency)  in write  between two Datacentra   can be  a problem with millions  and  millions of writes , that's  why we would like  to setup for  this  particular database a A-sync host Base  Mirror  like  Linux  is  able  for  .

Unfortunately  not available  on HP-UX  as far as I know?

 

 

Acclaimed Contributor

Re: HP-UX 11.31 3Par - LVM Host Base Mirror a-sync

>we prefer to use  LVM HostBase Mirroring .

 

You're not using 3PAR's Remote Copy instead?