NEED HELP: VOLUME unavailable after I pulled 1 disk

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damdude

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Hi All,

Sorry in advance if this question has been asked/answered before.

I created a volume lets say "volume1" using a 2TB disk in stripe mode and later I realized that I would need more space so I attached a 1TB SSD and used the option to extend this "volume1" using this disk. now I know that I dont have much data in this new 1TB SSD after I connected and even if its there I dont care. My 1TB SSD went bad and I had to remove it.meaning I didnt change anything in the settings but I physically removed it from system. but now since this 1TB SSD drive is gone. my system is thinking that the whole volume is in BAD state. so I am now unable to access whatever is there in that 2TB drive. is there anyway I can access the data on that drive and make this volume 1 accessible again.
 

danb35

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My 1TB SSD went bad and I had to remove it.
Then your data is gone. That's what happens when a disk dies in a striped pool.
 

Jailer

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This is what happens when you don't read and follow the manual instructions. You don't just "pull a disk" from your pool.

And yeah, what @danb35 said, your data is gone.
 

danb35

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This is what happens when you don't read and follow the manual instructions.
There's no "right" way to remove a disk from a striped pool--though why anyone would stripe in a SSD with spinning rust is a mystery to me.
 

pro lamer

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Excuse my noob's idea but what happens when you put the SSD back in? What did you mean "it went bad"?

Sent from my mobile phone
 

danb35

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If the SSD were in working condition, the pool would be fine. But if it's died, as OP indicates, the pool's toast and the data's gone.
 

Jailer

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There's no "right" way to remove a disk from a striped pool--though why anyone would stripe in a SSD with spinning rust is a mystery to me.
Well if you have an open SATA port and a still functioning drive you could replace it using the GUI. My point being you don't just start yanking drives out of your server as a number of posters seem to do at the first sign of trouble.
 

damdude

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Well, I know I made a mistake of setting it up as a stripe but I basically use this Machine as primarily for plex stuff only and no backups there. so never really cared much about data part. now, luckily I still have that SSD with me ( technically I will get that SSD back tomorrow) in the same state how it was when I pulled it. Do you guys think my volume will work if I put it back( the drive was working when I pulled it, its just that it goes bad once in while so I pulled it out of system). and what is the right way to dis-associate this drive from my volume1 now ?

Also I know I am supposed to use mirror or RAID config but my system was supposed to be as cheap as possible and this a old system being re-used so I have very basic config like 6GB ram and only 1 2TB drive (HDD) and 1 1TB SSD. But having said that I'll be getting some more SSDs (thanks to my friend at SANDISK - employee price) soon to be able to start using my system as "Time Machine". so what kind of RAID config do you guys suggest I should use.

In total I'll have like

1 (2TB Drive)
I am thinking like 3-4 (1TB SSDs)

what is the best possible storage config I can go with ?
 

Arwen

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May 17, 2014
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...
--though why anyone would stripe in a SSD with spinning rust is a mystery to me.
Well, for media storage for one. My minature media server running Linux with ZFS has an 1TB mSATA drive and a 2TB 2.5" spinner. I took a partition from each of 24GBs for the root pool. Then the rest was striped for media storage.

It's more than fast enough for supplying a single high bit rate 1080p stream, (not transcoded).

The media, (and root pool), are backed up to my FreeNAS, which uses 4 x 4TB in RAID-Z2. FreeNAS is then backed up to my 8TB Seagate SMR. Later I intend to buy another 8TB, (or larger), disk for another rotation in the backups.

So, if I loose a single file, (even if it's a 10GB Hi-Def movie), I can restore without resorting to re-ripping the optical disc. And if I loose an entire drive, well, root is mirrored, (and backed up). I simply replace the failed device, and restore the media.
 
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