SOLVED
Not sure I understand your configuration. Are you looking to add drives to your configuration?
Are you saying you have just four SSD drive? If so, I think the only possible CPG for SSD drive would be -ha mag raid1.
Would you capture the output from the following CLI commands and post them?
- showcage
- showpd
- showcpg -sdg
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company
A CPG always includes a specific disk type. Given FC and SSD disks, you have to have at least two CPGs.
With just the base enclosure, you could have four CPGs, all HA Mag:
- FC RAID1
- FC RAID5 (I think up to 7D+1P)
- SSD RAID1
- SSD RAID5 (I think up to 3+1)
If you add two enclosures, you would want SDDs evenly spread across the enclosures (aka cages, shelves, chassis). In addition, if you were to add two enclosures, it would be strongly advisable to add FC drives to them as well.
Then you could upgrade all CPGs to HA Cage. Note that by doing this, all RAIDsets would need to be changed to 2D+1P.
Tiering requires the Adaptive Optimization license.
And given Dynamic Optimization's ability to change the CPG of a volume transparently to the hosts, I'd recommend getting the HP 3PAR 7000 Data Optimization Suite.
----------
If my post was useful, click on my KUDOS! "White Star" !
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company
First of all: You should never "create individual CPG on each cage". That would make setting HA Cage impossible. I don't know what other make of storage you've used in the past, but the HP 3PAR StoreServ is different. (And better! :) )
The recommended RAID configs are as follows. All are HA Cage.
- create one CPG for RAID 1 for all FCs:
createcpg -t r1 -p -devtype FC FC_r1 - create one CPG for RAID 5 for all FCs:
createcpg -t r5 -p -devtype FC -ssz 3 FC_r5 - create one CPG for RAID 5 for all SSDs
createcpg -t r5 -p -devtype SSD -ssz 3 -sdgs 8G SSD_r5
While you can create virtual volumes using the SSD_r5 CPG, it is typically better to have AO use it as a tiering level (assuming you have the Adaptive Optimization license). And create your VVs using the FC_r5 CPG:
createaocfg -t0cpg SSD_r5 -t1cpg FC_r5 MyAOcfg
----------
If my post was useful, click on my KUDOS! "White Star" !
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company
Hi hassan-azmi
Your 7000 is too small for the usual default values for creating a CPG. Note if it has been upgraded to 3PAR OS 3.1.2, it would have all appropriate CPGs created (at least for the hardware at the time of the upgrade).
Otherwise: What you can create depends on what hardware you have. I'm guessing a 2-node 7000 (either 7200 or 7400). The next thing to know is how many cages. The disk slots on the front of the enclosure with the controllers is usually cage 0. The CLI and Management Console (MC) software assumes what is called High Availability Cage mode (HA Cage) when creating CPGs. That means you need as many cages as the set size of the CPG. For example, RAID5 (3d+1p) would need four (4) cages each holding the desired type of disk.
Again, I'm guessing you only have one or two cages. In that case you would need to have the CPG created with High Availability Magazine or (HA Mag). With the CLI you would need to add the "-ha mag" option. In the MC, you need to click the Advanced options and change the availability pulldown from cage to magazine.
Note in the case of the 7000s, "magazine" refers to an individual physical disk.
If you are still having problems, use the CLI, capture the output from the commands "showcage", "showpd", "showcpg" and post here.
Don't forget to reply with the "createcpg" command(s) you tried.
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company
Since there is only one cage, "-ha cage", the default, won't apply to any CPG -- RAID1 would require at least a second cage of disks for "-ha cage" to work.
Try these:
createcpg -sdgs 8g -t r1 -ha mag F1_r1
createcpg -sdgs 8g -t r5 -ha mag F1_r5
Note: While I work for HP, all of my comments (whether noted or not), are my own and are not any official representation of the company.
----------
If my post was useful, click on my KUDOS! "White Star" !
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company