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007revad / Synology_M2_volume

Easily create an M.2 volume on Synology NAS
MIT License
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Split SSD for cache and volume use #40

Closed Protoncek closed 1 year ago

Protoncek commented 1 year ago

Hello! I have ds920+ and i won't be able to create volume officially. So, i wonder, is it possible to use my two SSD's partially for creating volume and rest of space for synology cache? I have 2x500GB SSD's and my syno cache advisor says that i need cache of 250GB. I'd like to have an SSD volume of not more than 100GB for Home Assistant use, rest of space i'd use for cache.

Possible?

007revad commented 1 year ago

I don't think it's possible. DSM won't let you split an NVMe drive into cache and volume. It won't even let you set the storage pool or volume size on a single NVMe drive (it will on a pair of NVMe drives as RAID 0 or 1). If a script created a storage pool with a volume and a cache partition I don't think DSM would mount it or use it.

Protoncek commented 1 year ago

Yeah, that’s what i feared… thanks for info. And thanks for this script, too. Since ds920 isn’t supported officially it will come handy at a later stage perhaps. Yesterday i disabled ssd cache only - just for testing, and home assistant pretty much goes to a crawl without it, so it seems that it runs from ssd anyway. I guess i wouldn’t gain much if i create ssd volume to replace current ssd cache anyway.