I am looking into how best to model storage system performance capabilities so that we can confirm with storage vendors capabilities before a purchase. All for version 9 using DDB, but the DDB is on local RAID0 disk. This performance query is just for maglib performance.
Key things that we will need to provide are:
% Sequential workload
Disk Type, size and quantity.
I am happy with the last 2 but I guess what I am hoping to have advice on is what values are recommended under a few scenarios for % read/write and % sequential workload:
Daily rehydrated copies
Weekly rehydrated copies
Monthly rehydrated copies
SILO used with replicated data (ie no need for daily, weekly copies) - I know the data is trickled to tape over the time of the SILO lifespan in its deduped form but how does this show up in % read/write and workloads?
Thanks in advance.