L2 SSD and Defer writes.

[Mradr]

Question about the defer writes settings with the SSD and the L2 writing to this cache.

I can not seem to tell how it works... but when the L2 is told to write data from the L1 cache (because it's full or w/e) does it bypass it self to write the data to the L2 cache?

Right now I think the best settings for setting up a SSD and a HDD to make a Hybrid Drive would be the following:

# WARNING: I AM NOT SAYING SOMEONE SHOULD USE THIS!
HDD:
Block Size: What ever it recommends
Algorithm: Either one
Caching Strategy: Read/Write @ 512 (more or less)

---Does this hit only L1 or does it hit L2 also? If it does hit L2, Release write would increase the number of writes hitting the SSD, and setting it to off will fill the L1 too fast. If on the other hand you can turn off Defer write and the Caching Strategy is to work on when to tell L2 to write/read, then why does it not work? Bug or am I missing something?

Enable Defer writes: True
Latency: 1-10 sec max
Release After Write: True
HDD C1 Issue: True
Averaging Write amount: True
No write-Flush: False
---

Enable L2: True
Size: # amount you want
Algorithm: LBW
SSD/Flash: Drive #


SSD:
Block Size: What ever it recommends
Algorithm: Either one, LRU maybe being the best for being access
Caching Strategy: Read/Write @ 512 (more or less)
Enable Defer writes: True
Latency: at least 10 up to 60 sec max.
Release After Write: True
Everything else: False/Off

If I figure right... you should get the best of both worlds as the L1+L2 will increase read and write speeds with the Hard drive being the storage bulk. It will also help out the SSD not write as much with the cache enable.

[Support]

I'm sorry for late reply.

Does this hit only L1 or does it hit L2 also?

Caching Strategy hits both L1 and L2.

And currently Defer Write only happens on L1.