Re: softraid mirror & large drives (3T)

2017-04-18 Thread Karel Gardas
On Tue, Apr 18, 2017 at 7:02 PM, Ian Watts wrote: > Thanks for the feedback, Karel, Allan, and Kamil. The motivation is > long-term data storage reliability. For example, my wife creates > graphical books, which involves large files, plus other work and > personal files. > so kind of SOHO NAS?

Re: softraid mirror & large drives (3T)

2017-04-18 Thread Ian Watts
Thanks for the feedback, Karel, Allan, and Kamil. The motivation is long-term data storage reliability. For example, my wife creates graphical books, which involves large files, plus other work and personal files. Having a mirror is not terribly important, so doing a nightly sync to anothe

Re: softraid mirror & large drives (3T)

2017-04-18 Thread Karel Gardas
loose -> lose. Sorry not native English speaker here. On Tue, Apr 18, 2017 at 6:09 PM, Karel Gardas wrote: > How much data can you loose on this mirror? The rebuild time is long > and the chance of another drive dying is higher during rebuild so I > would consider either increasing redundancy to

Re: softraid mirror & large drives (3T)

2017-04-18 Thread Karel Gardas
On Tue, Apr 18, 2017 at 1:56 AM, Ian Watts wrote: > After 17 hours it is 24% complete, so it'll be about three > days to complete. The system is: How much data can you loose on this mirror? The rebuild time is long and the chance of another drive dying is higher during rebuild so I would conside

Re: softraid mirror & large drives (3T)

2017-04-18 Thread Stuart Henderson
On 2017-04-18, Allan Streib wrote: > Ian Watts writes: > >> With this much disk space, should I be looking at another way of >> achieving data redundancy? > > Buy a hardware RAID controller. I'd sooner have decent software RAID with disks spread across multiple controllers..

Re: softraid mirror & large drives (3T)

2017-04-18 Thread trondd
On Tue, April 18, 2017 8:48 am, Kamil CholewiÅ*ski wrote: > On Tue, 18 Apr 2017, Jiri B wrote: >> On Tue, Apr 18, 2017 at 08:23:56AM -0400, Allan Streib wrote: >>> Buy a hardware RAID controller. >> >> I suppose you wanted to write - 'buy two equal hardware RAID >> controllers', >> or how would yo

Re: softraid mirror & large drives (3T)

2017-04-18 Thread Kamil Cholewiński
On Tue, 18 Apr 2017, Jiri B wrote: > On Tue, Apr 18, 2017 at 08:23:56AM -0400, Allan Streib wrote: >> Buy a hardware RAID controller. > > I suppose you wanted to write - 'buy two equal hardware RAID controllers', > or how would you be solving problem in broken hw raid controller in > cca 10 yrs fr

Re: softraid mirror & large drives (3T)

2017-04-18 Thread Jiri B
On Tue, Apr 18, 2017 at 08:23:56AM -0400, Allan Streib wrote: > Ian Watts writes: > > > With this much disk space, should I be looking at another way of > > achieving data redundancy? > > Buy a hardware RAID controller. I suppose you wanted to write - 'buy two equal hardware RAID controllers',

Re: softraid mirror & large drives (3T)

2017-04-18 Thread Allan Streib
Ian Watts writes: > With this much disk space, should I be looking at another way of > achieving data redundancy? Buy a hardware RAID controller. Allan

Re: softraid mirror & large drives (3T)

2017-04-18 Thread Nick Holland
On 04/17/17 19:56, Ian Watts wrote: > Hello, > > I'm planning on replacing an old fileserver that has a single 1T drive > with something a little newer having 3T of space. I have two 3T drives > and have installed OpenBSD 6.0 to both as a softraid mirror. Works well > and I simulated a drive

softraid mirror & large drives (3T)

2017-04-17 Thread Ian Watts
Hello, I'm planning on replacing an old fileserver that has a single 1T drive with something a little newer having 3T of space. I have two 3T drives and have installed OpenBSD 6.0 to both as a softraid mirror. Works well and I simulated a drive failure by shutting it down, removing a drive,