VNXe 3100

Hi Paul,

Answers for your query,

1 Q  . The VNXe 3100 supports CIFS/NFS and iscsi
Ans  : VNXe series (3100 & 3300) both supports CIFS/NFS and iSCSI.

2Q  . You can reconfigure your disks into larger RAID groups than the disk packs sold with the VNX, for example if you bought 2 raid 5 5disk packs you could configure as 1 x 9 disk raid5 lun with a hot spare
Ans : Couldnt get your query properly, however as per VNXe3100 below are the disks supported with repsective RAID types along with disk packs mentioned below.

SAS drives (300 GB and 600GB): 4+1 RAID 5 &
                                                        3+3 RAID 10
SAS drives are sold in groups of 5 (4+1 R5) or 6 (3+3 R10)

NL SAS drives (1 TB or 2 TB): 4+2 RAID 6
NL SAS drives are sold in groups of 6 (4+2 R6)

VNXe dosent support any other RAID type other than mentioned above. Hope I have answered your query.

Regards

Shivanand

Hi Paul,

As per my understanding you can create custom pools with the RAID types mentioned earlier.

I will confirm you on this shortly.

Regards

Shivanand

Hi Shivanand

Many thanks for your assistance

What i mean by Q2 is  if i had 2 RAID5 packs 4+1 could i combine these packs into 9+1 RAID5 and create LUNS on that new storage pool. I suppose my question centres around how thw VNXe handle storage pools compared to traditional RAID groups

For example could i create a user defined pool with 10 disks in a RAID 5 setup and create various LUNS in this pool for use by iSCSI hosts

Thanks Again

Paul

p.s the quick response is greatly appreciated

Paul,

When you have 10 disks and you create a pool out of those disks, the RAID 5 configuration would still be 4+1 (and not 9+1) - and therefore two 4+1 R5 RAID Groups would be created internally. You do not have control over how the private RAID Groups get created.

However, once you have the pool created, you can create storage out of it - as you would do on a storage pool on a VNX storage system. You can choose the pool from which you want to provision storage when you are creating application storage.

Yes, you are correct.

Once you create a storage pool, you are presented with a usable capacity that you can carve out of that pool. You can use that capacity in whatever way you wish to.

thanks for your help guys :-)

Hi Avi

Ahh i think i see

So no mater how many groups of 5 disks in a storage pool (eg 20) you have they would always be RAID 5 4+1 set and the same then would go for the RAID10 and 6 disks they would alyways be in a 3+3 set

If for example you have 20 300gb sas disks in a user defined pool for say iscsi you can assign any size storage within the confines of the combined 4 RAID 4+1 sets ?

20 disk = 4 sets of 4+1

1set = 4 x 300gb (268 usable) = 1072 usable

4 sets = 4288GB

so i could create a lun of 4tb and present to a host ? not that i would present a lun of that size what i'm tryimg to confirm is that any lun created would be spread across the 4 sets in the pool ?

Thanks

Paul