Maximum number of Array on P410 Array controller

[dnet]

Does Anyone know how many array I can configura on a single Smar Array controller P410?

I have ML330 G6 with 8 slots.

[TTr · Accepted solution]

I have not seen any published numbers for limits on the number of arrays or logical drives but the limit should be high enough to accomodate the relatively small number of disks that you can connect to the P410. For example in your server, you can have 8 disks so the maximum number of arrays you can create is 8 raid-0 arrays.

With expansion options you can have 24 disks (and maybe more) connected to the 410 and I think this number should be well within the limit of the number of arrays.

What exactly is your concern or how are you thinking of configuring the controller?

[dnet]

Thank you Ttr for the answer.

I currently have 2 physical disk with Raid1 on the server that reaching almost full disk space and thinking to add more disks.
If the maximum number of the Array was limited to 2, I was thinking we should go with Raid 5 or 6 using rest of open slots.

Thank you

[THAKUR]

Restriction is there for logical drives like we cant create more than 64 logical drives. For array, we can create as many provided spaces are there.

[TTr]

> go with Raid 5 or 6 using rest of open slots

You can add disks to the existing array without losing your data. You can also convert from one raid type to another also without losing your data. These are the dynamic expansion features of the SA arrays and the P410
http://h18000.www1.hp.com/products/quickspecs/13201_div/13201_div.html

In your specific example you can buy 2 more disks and add them to the existing array. The array will become raid10 -two mirrored pairs. You then canexpand the existing LUN in the array and the expand the existing partitions in the OS (by using diskpart.exe in windows).

After you add the disk drives, you can convert from raid10 to raid5 etc.