Jamaica Box and Adding disks

[Mike_21]

Does anyone have a link to some onformation regarding a Jamaica box. Basically, I was wondering if I can remove and add disks to it while online and powered up (are the hot swaps).

Thanks

[A. Clay Stephenson]

Hi Mike:

I don't have a link but they are hot-plug. I have enoungh of these things that I change a drive every few weeks and never shutdown.

[John Palmer]

HP usually suggest that you exercise some caution when swapping Jamaica disks because the SCSI bus gets reset. Eg try do do it at a 'quiet' time .

That said, I've removed/added/swapped lots of them and only ever had one problem which was on a very busy server.

Regards,
John

[Tim D Fulford]

Hi

As above they are hot-plug. You will need to do a vgcfgrestore to get the LVM stuff back on it. If the system is mirrorred it will also re-mirror it.

I think the reason why they are hot-plug & not hot-swap is because it does not automatically put the disk structure back on the disk etc... For that type of thing you'll need an AutoRAID/fc60 etc....

Tim

[Sridhar Bhaskarla]

Hi Mike,

Though they are hot pluggable, I had problems with them couple of times. So, I would strongly suggest you do it during non-business hours.

-Sri

[Sanjay_6]

Hi Mike,

You can add disks to jamaicas online. They support hot-swap disks. Here is a link for more info,

http://h20000.www2.hp.com/bizsupport/TechSupport/Home.jsp?locale=en_US&prodTypeId=12169&prodSeriesId=33739&prodSeriesName=hp+surestore+high-availability+storage+systems+%28ha


Here is the installation / service manual for the jamaica,

http://h200004.www2.hp.com/bc/docs/support/SupportManual/lpg28396/lpg28396.pdf

Hope this helps.

Regds

[Magdi KAMAL]

Hi Mike,

Of course you can But :

1. Jamaica ( or HASS : High Availability Storage System : ie. changed could be done online )is done to allow hot replacing disks but you may insure that no applications are accessing the disk(s) you plan to change.

In case that these disks in Jamaica are mirrored, you can do it but one by one.

2. In case that some applications are accessing this Jamaica, you need to stop them first ( ie. applications ) and do your disks change.

No problem at all.
Good luck.

Magdi