Comments on: Building a custom and cheap storage server yourself – Part II http://blog.ronnyegner-consulting.de/2010/01/11/building-a-custom-and-cheap-storage-server-yourself-part-ii/ Ronny Egners Blog about Oracle, UNIX and EMC / Legato Networker Fri, 06 Jan 2012 07:51:03 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Ronny Egner http://blog.ronnyegner-consulting.de/2010/01/11/building-a-custom-and-cheap-storage-server-yourself-part-ii/comment-page-1/#comment-7081 Ronny Egner Tue, 19 Oct 2010 05:38:18 +0000 http://blog.ronnyegner-consulting.de/?p=1552#comment-7081 Hi, this is a known OpenSolaris Bug (CR 6942439/ak-2010.02.09). On systems with a lot of memory ZFS used almost the whole memory. Thats good. Unfortunately memory fragmentation increases to a level where the kernel is unable to find a continous piece of memory (lets say 128 KB). To avoid this error set in your /etc/system: set swapfs_minfree=5000000 This will leave 5 million pages (one page is 4 kb) of free memory all the time. With this setting everything runs fine so far. Hi,

this is a known OpenSolaris Bug (CR 6942439/ak-2010.02.09). On systems with a lot of memory ZFS used almost the whole memory. Thats good. Unfortunately memory fragmentation increases to a level where the kernel is unable to find a continous piece of memory (lets say 128 KB).

To avoid this error set in your /etc/system:

set swapfs_minfree=5000000

This will leave 5 million pages (one page is 4 kb) of free memory all the time. With this setting everything runs fine so far.

]]> By: Hergen http://blog.ronnyegner-consulting.de/2010/01/11/building-a-custom-and-cheap-storage-server-yourself-part-ii/comment-page-1/#comment-6762 Hergen Mon, 11 Oct 2010 09:22:09 +0000 http://blog.ronnyegner-consulting.de/?p=1552#comment-6762 Hi, I have a similar system here. Chasis: 3HE Intel Dual-CPU SC836Server (Westmere) (V 2.1) Motherboard: Supermicro Mainboard X8DT3-LN4F CPU: 2x Intel Xeon 4-Core E5620 2,40GHz 12MB 5.86GT/s (Westmere) RAM: 12 GB ECC Registered DDR3 RAM 2 Rank ATP (6x 2048 MB) SAS Contr.: Adaptec ASR5445Z 4I4E mit ZMCP Festplatten 16x 2000 GB SAS II Seagate Constellation ES 3,5" 7.2k LAN: 4 LAN Ports on Board Intel PRO/1000 PT Dual Port Server Netzwerkkarte there are to ZFS pools, one rpool with two disks mirrored and a raidz2 pool with 14 Disks. My problem is, that I/O seems to freeze the hole system. I cannot login to the console. O.K. rpool is on the same Controller. I can see that you have a similar problem with your configuration. Have you solved it. Perhaps some entires in /etc/system ... regards Hi,

I have a similar system here.

Chasis: 3HE Intel Dual-CPU SC836Server (Westmere) (V 2.1)
Motherboard: Supermicro Mainboard X8DT3-LN4F
CPU: 2x Intel Xeon 4-Core E5620 2,40GHz 12MB 5.86GT/s (Westmere)
RAM: 12 GB ECC Registered DDR3 RAM 2 Rank ATP (6x 2048 MB)
SAS Contr.: Adaptec ASR5445Z 4I4E mit ZMCP
Festplatten 16x 2000 GB SAS II Seagate Constellation ES 3,5″ 7.2k
LAN: 4 LAN Ports on Board
Intel PRO/1000 PT Dual Port Server Netzwerkkarte

there are to ZFS pools, one rpool with two disks mirrored and a raidz2 pool with 14 Disks.

My problem is, that I/O seems to freeze the hole system.
I cannot login to the console.
O.K. rpool is on the same Controller.

I can see that you have a similar problem with your configuration.
Have you solved it. Perhaps some entires in /etc/system …

regards

]]> By: Ronny Egners Blog » Building a custom and cheap storage server yourself http://blog.ronnyegner-consulting.de/2010/01/11/building-a-custom-and-cheap-storage-server-yourself-part-ii/comment-page-1/#comment-1345 Ronny Egners Blog » Building a custom and cheap storage server yourself Wed, 17 Feb 2010 15:47:38 +0000 http://blog.ronnyegner-consulting.de/?p=1552#comment-1345 [...] is part I of our journey towards building a storage system ourself. Part II is here and Part III [...] [...] is part I of our journey towards building a storage system ourself. Part II is here and Part III [...]

]]> By: Ronny Egners Blog » Building a custom and cheap storage server yourself – Part III http://blog.ronnyegner-consulting.de/2010/01/11/building-a-custom-and-cheap-storage-server-yourself-part-ii/comment-page-1/#comment-1324 Ronny Egners Blog » Building a custom and cheap storage server yourself – Part III Tue, 16 Feb 2010 12:17:00 +0000 http://blog.ronnyegner-consulting.de/?p=1552#comment-1324 [...] This is part III of my most recent project named “Building a custom and cheap storage server yourself”. Part I can be found here and Part II here. [...] [...] This is part III of my most recent project named “Building a custom and cheap storage server yourself”. Part I can be found here and Part II here. [...]

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