gleo219's Posts

gleo219's Posts

Does anybody have the pros and cons of running VxRail all flash with dedupe and compression alongside datadomain backup that are deduped?
EMC came back saying expected behaviour and to manually create the sessions without the Wizard.
Initiator is the Host Bus Adapter PWWN. So in your scenario each host has 4 initiators.
If it's RAID5 (4+1) it would use 5 disks RAID5 (8+1) would use 9 disks. RAID5 with 15 disks would be (14+1) rebuild time would be very high. As to pool performance different disk types of the... See more...
If it's RAID5 (4+1) it would use 5 disks RAID5 (8+1) would use 9 disks. RAID5 with 15 disks would be (14+1) rebuild time would be very high. As to pool performance different disk types of the same tier i.e. SAS in the same pool will lead to performance differences.
Looks like it's 256 Initiators per SP based on the support matrix. Capacity limits VNXe3200 Dual SP Number of Hosts - 256 Maximum Block HA Hosts (2 initiators per host) - 256 Ma... See more...
Looks like it's 256 Initiators per SP based on the support matrix. Capacity limits VNXe3200 Dual SP Number of Hosts - 256 Maximum Block HA Hosts (2 initiators per host) - 256 Maximum number of iSCSI initiators (+ FC initiators for VNXe3200) - 256 http://www.emc.gm/collateral/TechnicalDocument/docu31807.pdf
Why don't you create a new pool with the 600 GB drives you can migrate luns between the pools  if required. Answer to the first of the other two questions you can't create Raid 5 (8+1) with 15 d... See more...
Why don't you create a new pool with the 600 GB drives you can migrate luns between the pools  if required. Answer to the first of the other two questions you can't create Raid 5 (8+1) with 15 disks, it will only use disk increments of 9. So it would be 9 disks 18 disks or 27 disks etc Useful document to read https://www.emc.com/collateral/white-papers/h12682-vnx-best-practices-wp.pdf
I've just came across a mirrorview A wizard configuration that created a pool on 3 different disk types using all of the hot spares, even though we had a dedicated traditional RAID group (not on ... See more...
I've just came across a mirrorview A wizard configuration that created a pool on 3 different disk types using all of the hot spares, even though we had a dedicated traditional RAID group (not on vault drives) to use for RLP. Looking at the Mirrorview Wizard rules don't think the wizard can avoid doing this on VNX2 where hot spares are not configured. • By default, the system configures reserved LUNs as thick LUNs using the following method: 1. It configures thick LUNs in pools that do not contain server-visible LUNs or mirror images and contain the least number of reserved LUNs. 2. If the conditions in step 1 cannot be met, the system tries to create a new storage pool (three- or five-disk RAID 5 or two-disk RAID 1/0) for the thick LUNs. It then configures the reserved LUNs on this pool. 3. If no disks are available to create a new storage pool, it places the reserved LUNs in an existing pool that has enough capacity. 4. If there is not an existing pool with enough capacity, it evaluates RAID groups using steps 1 to 4. 5. If it cannot find an acceptable RAID group, the process fails. The wizard seems to be at odds with hot spares on VNX2