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Cache Drive... will this work?

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Hi there.

 

I currently have my unRaid set up with:

 

parity device: WD20EARS

disk1 device: WD20EARS

disk2 device: WD20EARS

disk3 device: WD20EARS

disk4 device: WD20EARS

disk5 device: WD20EARS

disk6 device: WD20EARS

disk7 device: WD1600JB (IDE)  (soon to be switched to WD20EARS)

 

and I have another "mounted" drive,

ST3160023AS, mounted in /mnt/user/other_drive

 

on this "other_drive", i have my:

MySQL

SABnzbd

SickBeard

CouchPotatoApp

"post processing directory"

"download directory"

 

on this drive, so this way, even if the array is down for whatever reason, my downloads will still "download", and stopping the array is fine.

 

What I was wondering, is I just "acquired" a 1TB 7200 drive, and I was thinking maybe I should use this as my "cache" drive, as I am downloading way too much per day, so this way it will only "write" to the array once a day, rather than all day long when the stuff downloads.

 

Does the cache drive work in this way?  if the array is "rebuilding" or wahtever, will the apps I run still "run" in the background?  will the array be able to be stopped properly without having to stop the "apps" first?  Am I making sense??

 

THanks.

 

Steve (TheStapler)

Does the cache drive work in this way?

 

if the array is "rebuilding" or wahtever, will the apps I run still "run" in the background? 

 

will the array be able to be stopped properly without having to stop the "apps" first?

 

Yes

 

Yes

 

No

 

Peter

  • Author

Ok, is there a "pre stop array script" and a "post array start script" that can be used?

so this way, my "apps" can be started and stopped properly...

 

 

also, you mentioned that YES my apps will run if the array is stopped, BUT, how can the array be stopped, if the apps are running still?

 

 

Steve.

There is no scipt to use to stop your apps.

 

 

also, you mentioned that YES my apps will run if the array is stopped, BUT, how can the array be stopped, if the apps are running still?

 

When did I post that??

 

Peter

  • Author

Does the cache drive work in this way?

 

if the array is "rebuilding" or wahtever, will the apps I run still "run" in the background?

 

will the array be able to be stopped properly without having to stop the "apps" first?

 

Yes

 

Yes

 

No

 

Peter

 

so, if i put the 3 questions, with your 3 answers...

 

Does the cache drive work in this way?  Yes

if the array is "rebuilding" or wahtever, will the apps I run still "run" in the background?  Yes

will the array be able to be stopped properly without having to stop the "apps" first?  No

 

I assumed that this is what you meant.

Does the cache drive work in this way?

 

if the array is "rebuilding" or wahtever, will the apps I run still "run" in the background?

 

will the array be able to be stopped properly without having to stop the "apps" first?

 

Yes

 

Yes

 

No

 

Peter

 

so, if i put the 3 questions, with your 3 answers...

 

Does the cache drive work in this way?  Yes

if the array is "rebuilding" or wahtever, will the apps I run still "run" in the background?  Yes

will the array be able to be stopped properly without having to stop the "apps" first?  No

 

I assumed that this is what you meant.

Which question/answer indicates that the apps will continue to when the array is stopped?

 

 

You could partition the cache drive?

You could partition the cache drive?

How do you do taht ? I shuld like that

 

//Peter

Does the cache drive work in this way?

 

if the array is "rebuilding" or wahtever, will the apps I run still "run" in the background?

 

will the array be able to be stopped properly without having to stop the "apps" first?

 

Yes

 

Yes

 

No

 

Peter

 

Your method (here) of answering questions was rather blunt and wide open to interpretation, so I can understand the confusion.

It's usually helpful to quote the questions asked with your answers underneath, don't assume everyone follows the train of thought you were on :)

 

Just my .02, I'm sure the help is greatly appreciated, but a little structure breeds a good deal of clarification ;)

Maybe your "whatever" means stopped. "Whatever" could really mean just about anything. I chose not to address and answer to "whatever".

 

The apps can be running any time the array is started and accessible. The array is started and accessible when it is rebuilding. The array is started and accessible during normal use. The array is not started and accessible when it is stopped (obviously) or when you are adding a new disk and the new disk is being cleared.

 

Peter

 

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