IRST cache lifespan

[blueseidboy]

I'm sure this has probably been covered before but a quick search didnt show up my exact question (*awaits people posting link*)

Does an SSD used as a cache drive have a short lifespan?

Also i read somewhere that there is a 64GB limit on cache drive so if i bought a 128GB drive can you use a single 64Gb partition and over provisioning (is that the correct term?) to increase the life span or does ISRT operate on a drive level rather then a partition level?

or option C am i just talking absolute rubbish

 

[wazza300]

It's limited to 60gb,you can make a partition and use that to cache,the remaining space can be used for storage

It doesn't wear out the ssd any quicker than in non caching,as all its doing is reading and writing data to it like it would in any other situation

 

[( |-| |2 ][ $]

Someone else should probably confirm this but the SSD will use any available space regardless of partition, so I would have thought if you're limited to 64GB, yes the rest can be used for over provisioning to save the life of the drive.

The question on life span of an SSD using IRST all depends on how it decides to "buffer" data. (i don't know).

For example if you're using IRST to buffer a large storage drive - If it buffers data as it's passed from network to disk and you're frequently writing large amounts of data your drive then a 64GB IRST drive would wear quicker than just using a large SSD. Similarly if it buffers reads and you continuely read differnet things from the drive then it's going to be writing to the SSD to do that.

My opinion is that a 64GB ISRT would wear quicker because being used as a buffer means it's contents has to continuely change.

In reality it will probably last 3 years and be obsolete before it breaks.

 

[blueseidboy]

I assumed the caching worked as in all data into the drive was sent to cache to then be queued to write to the drive but it appears this isn't the case and its more like most called data will be moved to the cache drive, so not quite as hard a life on the drive as I thought

Contemplating putting the wife's laptop back on a conventional drive so I can steal her 128gb Samsung 830 to join my 2 spinpoint f3s