errors while "btrfs receive"

errors while "btrfs receive"

[Vincent Olivier]

hi,

i'm doing a ~900TiB receive on a 6x4TB RAID0

"fi show", "device scan" all fail and report "unable to connect to /dev/sdX"

is it normal ?

thanks,

Vincent

Re: errors while "btrfs receive"

[Duncan]

Vincent Olivier posted on Mon, 31 Aug 2015 14:34:02 -0400 as excerpted:

> i'm doing a ~900TiB receive on a 6x4TB RAID0
> 
> "fi show", "device scan" all fail and report "unable to connect to
> /dev/sdX"
> 
> is it normal ?

Can't answer your direct question as my use-case doesn't include send/
receive, but...

~900TiB receive on a 24TB (6x4TB) raid0?  

Did you mean ~900GiB, or did you miss the decimal point, or ????  I mean, 
yeah, btrfs does have the compress= option, but I don't think it's going 
to compress 900 TiB to fit in under 24!  That's likely to be some 
seriously lossy compression!

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman

Re: errors while "btrfs receive"

[Vincent Olivier]

It's ~900GiB. Sorry.

I'm on 4.1.6 Arch Linux.

-----Original Message-----
From: "Duncan" <1i5t5.duncan@cox.net>
Sent: Tuesday, September 1, 2015 03:30
To: linux-btrfs@vger.kernel.org
Subject: Re: errors while "btrfs receive"

Vincent Olivier posted on Mon, 31 Aug 2015 14:34:02 -0400 as excerpted:

> i'm doing a ~900TiB receive on a 6x4TB RAID0
> 
> "fi show", "device scan" all fail and report "unable to connect to
> /dev/sdX"
> 
> is it normal ?

Can't answer your direct question as my use-case doesn't include send/
receive, but...

~900TiB receive on a 24TB (6x4TB) raid0?  

Did you mean ~900GiB, or did you miss the decimal point, or ????  I mean, 
yeah, btrfs does have the compress= option, but I don't think it's going 
to compress 900 TiB to fit in under 24!  That's likely to be some 
seriously lossy compression!

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman

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