Re: [CentOS] First Time Setting up RAID

2013-11-15 Thread John Doe
From: James B. Byrne byrn...@harte-lyne.ca We have a cold server with 32Gb RAM and 8 x 3TB SATA drives mounted in hotswap cells.  The intended purpose of this system is as an ERP application and DBMS host.  The ERP application will likely eventually have web access but at the moment only

[CentOS] First Time Setting up RAID

2013-11-14 Thread James B. Byrne
Arch = x86_64 CentOS-6.4 We have a cold server with 32Gb RAM and 8 x 3TB SATA drives mounted in hotswap cells. The intended purpose of this system is as an ERP application and DBMS host. The ERP application will likely eventually have web access but at the moment only dedicated client

Re: [CentOS] First Time Setting up RAID

2013-11-14 Thread SilverTip257
On Thu, Nov 14, 2013 at 12:23 PM, James B. Byrne byrn...@harte-lyne.cawrote: Arch = x86_64 CentOS-6.4 We have a cold server with 32Gb RAM and 8 x 3TB SATA drives mounted in hotswap cells. The intended purpose of this system is as an ERP application and DBMS host. The ERP application

Re: [CentOS] First Time Setting up RAID

2013-11-14 Thread Mauricio Tavares
On Thu, Nov 14, 2013 at 1:04 PM, SilverTip257 silvertip...@gmail.com wrote: On Thu, Nov 14, 2013 at 12:23 PM, James B. Byrne byrn...@harte-lyne.cawrote: Arch = x86_64 CentOS-6.4 We have a cold server with 32Gb RAM and 8 x 3TB SATA drives mounted in hotswap cells. The intended purpose of

Re: [CentOS] First Time Setting up RAID

2013-11-14 Thread John R Pierce
On 11/14/2013 12:52 PM, Mauricio Tavares wrote: I do agree that for the amount of drives he has, raid10 seems to be the way to go. That said, what about raid6? every random write has to read/modify/write 3 drives on raid6. raid6 rebuilds are painfully slow.raid6 write performance

Re: [CentOS] First Time Setting up RAID

2013-11-14 Thread m . roth
James B. Byrne wrote: Arch = x86_64 CentOS-6.4 We have a cold server with 32Gb RAM and 8 x 3TB SATA drives mounted in hotswap cells. The intended purpose of this system is as an ERP application and DBMS host. The ERP application will likely eventually have web access but at the moment

Re: [CentOS] First Time Setting up RAID

2013-11-14 Thread James B. Byrne
On Thu, November 14, 2013 12:51, Reindl Harald wrote: Am 14.11.2013 18:23, schrieb James B. Byrne: From what I have read it appears that the system disk must use RAID 1 if it uses RAID at all. no! /boot must be RAID1, see below md0: /boot md1: / md2: /data [root@srv-rhsoft:~]$ cat

Re: [CentOS] First Time Setting up RAID

2013-11-14 Thread m . roth
James B. Byrne wrote: On Thu, November 14, 2013 12:51, Reindl Harald wrote: Am 14.11.2013 18:23, schrieb James B. Byrne: From what I have read it appears that the system disk must use RAID 1 if it uses RAID at all. So, this is saying, if I read it aright, that one can have multiple RAID

Re: [CentOS] First Time Setting up RAID

2013-11-14 Thread Mauricio Tavares
On Thu, Nov 14, 2013 at 5:20 PM, m.r...@5-cent.us wrote: James B. Byrne wrote: On Thu, November 14, 2013 12:51, Reindl Harald wrote: Am 14.11.2013 18:23, schrieb James B. Byrne: From what I have read it appears that the system disk must use RAID 1 if it uses RAID at all. So, this is

Re: [CentOS] First Time Setting up RAID

2013-11-14 Thread m . roth
Mauricio Tavares wrote: On Thu, Nov 14, 2013 at 5:20 PM, m.r...@5-cent.us wrote: snip Big question: what manufacturer, and what support chips? Most of our Dells have PERC 6xx or 7xx, which is good hardware RAID. We have several boxes with the Intel RAID on chip - aka fakeRAID. They are a