Comments for Iain Rauch's Blog http://iain.rauch.co.uk/blog Interesting stuff... Sat, 05 Nov 2011 13:37:17 +0000 hourly 1 http://wordpress.org/?v=3.2.1 Comment on My NAS Server 1 by Iain http://iain.rauch.co.uk/blog/2010-05/my-nas-server-1/comment-page-1/#comment-77 Iain Sat, 05 Nov 2011 13:37:17 +0000 http://iain.rauch.co.uk/blog/?p=25#comment-77 "...4 on-board SATA ports. Using 5 x 4-port SATA cards, I gained a total of 24 SATA ports." All the ports have a small extension to make the socket external. “…4 on-board SATA ports. Using 5 x 4-port SATA cards, I gained a total of 24 SATA ports.”

All the ports have a small extension to make the socket external.

]]> Comment on My NAS Server 1 by ryan http://iain.rauch.co.uk/blog/2010-05/my-nas-server-1/comment-page-1/#comment-74 ryan Wed, 27 Jul 2011 20:54:17 +0000 http://iain.rauch.co.uk/blog/?p=25#comment-74 Can anyone tell me how he has got 24! drives on that, is it a modified pc or what ? Can anyone tell me how he has got 24! drives on that, is it a modified pc or what ?

]]> Comment on My NAS Server 1 by Iain http://iain.rauch.co.uk/blog/2010-05/my-nas-server-1/comment-page-1/#comment-65 Iain Mon, 13 Jun 2011 19:25:24 +0000 http://iain.rauch.co.uk/blog/?p=25#comment-65 I think unRAID is good in that respect as it's more flexible, and as far as I can tell produces the same results as RAID 5. You're right about the capability of ZFS, but I disagree about not needing to grow a RAIDZ. If for example you create a RAIDZ device with 4 disks, but are happy with the redundancy RAIDZ provides with using 6, you don't have the option to add them later when you need them and they are cheaper. I think unRAID is good in that respect as it’s more flexible, and as far as I can tell produces the same results as RAID 5.

You’re right about the capability of ZFS, but I disagree about not needing to grow a RAIDZ.

If for example you create a RAIDZ device with 4 disks, but are happy with the redundancy RAIDZ provides with using 6, you don’t have the option to add them later when you need them and they are cheaper.

]]> Comment on My NAS Server 2 (Part III) – Hardware by jason http://iain.rauch.co.uk/blog/2010-05/my-nas-server-2-part-iii/comment-page-1/#comment-64 jason Mon, 13 Jun 2011 08:06:39 +0000 http://iain.rauch.co.uk/blog/?p=46#comment-64 > It wasn’t easy to make a short-list since there’s no site (that I could find) that compares all these features. I feel your pain! :) I've recently come across skinflint.co.uk (no, I've no affiliation to them!) but it rocks as far as comparing hardware and features. Drive speeds, cost per TB, GB etc, number of slots, ports, etc on motherboards... It's like a breath of fresh air. Cheers > It wasn’t easy to make a short-list since there’s no site (that I could find) that compares all these features.

I feel your pain! :)

I’ve recently come across skinflint.co.uk (no, I’ve no affiliation to them!) but it rocks as far as comparing hardware and features.

Drive speeds, cost per TB, GB etc, number of slots, ports, etc on motherboards… It’s like a breath of fresh air.

Cheers

]]> Comment on My NAS Server 1 by jason http://iain.rauch.co.uk/blog/2010-05/my-nas-server-1/comment-page-1/#comment-63 jason Mon, 13 Jun 2011 08:00:23 +0000 http://iain.rauch.co.uk/blog/?p=25#comment-63 Thanks for the write-up. I think I've had the same experience as you concerning getting large server cases with space for many HDDs into the UK: the prices are extortionate! Anyhow, just a few things: 1) My understanding of UNRAID is that there is no redundancy. It goes against the philosophy of the solution really. It provides some level of protection by having a parity drive, but that's not the same as have redundant data or a disk. It allows data recovery in the event of a failure by calculating the values of the lost data. 2) ZFS has supported growing the size of pools (not raidz devices) since inception AFAIK. You can't grow the size or a raidz device, but normally you wouldn't need to: that device would be part of a pool and if you need more space you just add more disks (or raidz devices, or mirrors etc) to that pool. I'll soon be going this way myself. I've been doing a lot of research lately and will probably go with ZFS running on FreeNAS or NexentaStor which will allow me hot spares. Thanks for the post! Thanks for the write-up.
I think I’ve had the same experience as you concerning getting large server cases with space for many HDDs into the UK: the prices are extortionate!

Anyhow, just a few things:

1) My understanding of UNRAID is that there is no redundancy. It goes against the philosophy of the solution really. It provides some level of protection by having a parity drive, but that’s not the same as have redundant data or a disk. It allows data recovery in the event of a failure by calculating the values of the lost data.

2) ZFS has supported growing the size of pools (not raidz devices) since inception AFAIK. You can’t grow the size or a raidz device, but normally you wouldn’t need to: that device would be part of a pool and if you need more space you just add more disks (or raidz devices, or mirrors etc) to that pool.

I’ll soon be going this way myself. I’ve been doing a lot of research lately and will probably go with ZFS running on FreeNAS or NexentaStor which will allow me hot spares.

Thanks for the post!

]]> Comment on My NAS Server 2 (Part I) – Introduction by Ken http://iain.rauch.co.uk/blog/2010-05/my-nas-server-2-part-i/comment-page-1/#comment-57 Ken Fri, 22 Apr 2011 01:06:51 +0000 http://iain.rauch.co.uk/blog/?p=20#comment-57 Take a look at Gluster FS for your second go around. It gives you the ability to unify multiple smaller raid 5 groups into a larger volume. (essentially raid 50) You can to 3+1's with your disks and then unify all those software raids together. Take a look at Gluster FS for your second go around. It gives you the ability to unify multiple smaller raid 5 groups into a larger volume. (essentially raid 50)

You can to 3+1′s with your disks and then unify all those software raids together.

]]> Comment on My NAS Server 2 (Part III) – Hardware by Chris http://iain.rauch.co.uk/blog/2010-05/my-nas-server-2-part-iii/comment-page-1/#comment-43 Chris Mon, 05 Jul 2010 13:59:32 +0000 http://iain.rauch.co.uk/blog/?p=46#comment-43 Your public are interested in your work. Hurry up and write the next chapter. Your public are interested in your work. Hurry up and write the next chapter.

]]> Comment on Power-on an ATX PSU Without a System by My NAS Server 1 http://iain.rauch.co.uk/blog/2010-05/power-on-psu-without-system/comment-page-1/#comment-5 My NAS Server 1 Sun, 16 May 2010 16:03:03 +0000 http://iain.rauch.co.uk/blog/?p=31#comment-5 [...] Power-on an ATX PSU Without a System May 16 [...] [...] Power-on an ATX PSU Without a System May 16 [...]

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