Chapter 15. IBM System Storage SAN Volume Controller attachment 551
SSD capacity. Scalability is limited compared to SSDs in a DS8000. With up to 8 SAN Volume
Controller nodes in a cluster, we can work with up to 32 single SSDs only.
SSDs in a separate storage system
With a SAN Volume Controller, you can separate the SSD storage system from the HDD
(spinning drive) storage system. The SAN Volume Controller Easy Tier automatically handles
the optimal tiered configuration. For example, one system can be a DS8000, and the other
system a DS3000, or vice versa. However, availability is an issue. If you consider your data or
most of your data valuable enough that it needs to go on a System Storage DS8000 with the
highest possible availability, you ...