Is RAID read only caching safe?

[Ren Heika]

So as the title says I wanted to make sure enabling read only caching was safe for my RAID configuration. I would think it was because it would essentially work like a hybrid drive where ram boosts read performance and since it wasn't caching write data then if there was a power failure then it wouldn't effect anything. Is that assumption correct?

[Technomancer__]

1 minute ago, Renton577 said:

So as the title says I wanted to make sure enabling read only caching was safe for my RAID configuration. I would think it was because it would essentially work like a hybrid drive where ram boosts read performance and since it wasn't caching write data then if there was a power failure then it wouldn't effect anything. Is that assumption correct?

it may try to write on it and just give you errors because it cant and it will just not work

btw just enable both and get a cheap ups

[Electronics Wizardy]

Read cache will work fine. 

 

Just now, Ethocreeper said:

it may try to write on it and just give you errors because it cant and it will just not work

btw just enable both and get a cheap ups

it fyou set it to a read cache, it won't use it as a write cache at all

 

The os also already has a read cache on ram built in.

[Ren Heika]

Just now, Ethocreeper said:

it may try to write on it and just give you errors because it cant and it will just not work

btw just enable both and get a cheap ups

Well that's the thing with read caching enabled now I get 200+ read speeds that now match my write speeds, but with read caching off I get around 150, and it is plugged into a UPS.

[Ren Heika]

Just now, Electronics Wizardy said:

Read cache will work fine. 

 

it fyou set it to a read cache, it won't use it as a write cache at all

 

The os also already has a read cache on ram built in.

I think read cache was turned off when I'm using my mobo RAID. When it was through the OS it was around 200M then it went down to 150 now with the cache on its back to 200. Just wanted to make sure power failure wouldn't effect anything.

[Electronics Wizardy]

Just now, Renton577 said:

I think read cache was turned off when I'm using my mobo RAID. When it was through the OS it was around 200M then it went down to 150 now with the cache on its back to 200. Just wanted to make sure power failure wouldn't effect anything.

never use mobo raid, it sucks, use software raid or a hardware raid.

 

if its a read cache it won't affect anything

[Ren Heika]

1 minute ago, Electronics Wizardy said:

never use mobo raid, it sucks, use software raid or a hardware raid.

 

if its a read cache it won't affect anything

Cool thanks, I switched to mobo because I wanted to boot from the drives. And I'll keep it enabled then.