HW Upgrades


ahab666

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Hello

I am planing some upgrades and wonder if anyone could be of help, i am still a NIX noob ...

 

1. i found 4 HDDs  with read errors atm i am moving the data to the working HDDs. as i have already removed 1 dead HDD physically i wonder how i can remove it from the array i get some error messages about a missing Drive.

2. i am planing to buy 3 big HDDs, one as a parity drive and 2 for data - best and fastest way to add, move content and remove the older smaller disks

3. i have 1 250 GB cache SSD and want to replace it wit 2 512 GB SSDs safest way to do that because i have 2 user shares in cache only mode ....

 

thanks ahead ....

Edited by ahab666
spelling qwertz <-> qwerty
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2 hours ago, ahab666 said:

as i have already removed 1 dead HDD physically i wonder how i can remove it from the array i get some error messages about a missing Drive.

Array is currently with or without parity?

 

2 hours ago, ahab666 said:

best and fastest way to add, move content and remove the older smaller disks

fastest is doing if before adding parity

 

2 hours ago, ahab666 said:

i have 1 250 GB cache SSD and want to replace it wit 2 512 GB SSDs safest way to do that because i have 2 user shares in cache only mode ....

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/?do=findComment&amp;comment=511923

or

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/?do=findComment&amp;comment=480419

and then

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/?do=findComment&amp;comment=480417

 

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18 disks without parity... I guess that data has no value to you.

 

A lot of disks showing issues, 2 or 3 are failing for sure, but there are others with possible issues, what I would recommend for now is running an extended SMART test on all disks and when done post new diags so we can really see what we're working with.

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  • 6 months later...
On 11/29/2018 at 2:35 PM, johnnie.black said:

hi johnny black at al,

 

following up on the cache hw update i added a *.txt file of the preclean message-summaries - i wonder if the big difference in the zeroing speed will degrade the pool performance to the slower write speed ?

 

the  second question is for the "migration" part - what happens if i have stored the docker img file in the root of the existing cache drive ?

and what will happen if i add 2 512GB drives to the one slow old 256GB drive - and then after building and balancing the pool remove the small one.  Will i at least get the 512GB Capacity of the 2 remaining larger ones ??

 

cheers ahab666 

Preaclen Summery.txt

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17 minutes ago, ahab666 said:

i wonder if the big difference in the zeroing speed will degrade the pool performance to the slower write speed ?

Likely yes, though you should avoid preclearing SSDs.

 

17 minutes ago, ahab666 said:

what happens if i have stored the docker img file in the root of the existing cache drive ?

Delete and re-create, no need to copy

https://forums.unraid.net/topic/57181-real-docker-faq/?do=findComment&comment=564309

 

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