[gentoo-user] RAID 1+0 question

2006-03-02 Thread Marton Gabor
Hi! Thank you all for the fast replies, you helped me a lot. Unfortunately we cannot afford a HW RAID card, so I have to make it with software RAID. Now I have the idea to use RAID5 and if I get the picure rigth I need let's say a ~100MB /boot in RAID1, 512MB swap not in RAID on every disk,

Re: [gentoo-user] RAID 1+0 question

2006-03-02 Thread Richard Fish
On 3/2/06, Marton Gabor [EMAIL PROTECTED] wrote: Hi! Thank you all for the fast replies, you helped me a lot. Unfortunately we cannot afford a HW RAID card, so I have to make it with software RAID. Now I have the idea to use RAID5 and if I get the picure rigth I need let's say a ~100MB /boot

Re: [gentoo-user] RAID 1+0 question

2006-03-02 Thread Jarry
Richard Fish wrote: On 3/2/06, Marton Gabor [EMAIL PROTECTED] wrote: let's say a ~100MB /boot in RAID1, 512MB swap not in RAID on every disk, Actually, if you make 512MB non-raid swap on each disk with equal priority, its like having swap on raid0 (it will be stripped over swap-partitions on

Re: [gentoo-user] RAID 1+0 question

2006-03-02 Thread Richard Fish
On 3/2/06, Jarry [EMAIL PROTECTED] wrote: Frankly, I dont understand this. Why should the write speed be so degraded? If you have 4 disks in raid5, and you want to write 1.5 GB of data, you actually write 500MB on disk1, 500MB on disk2, 500MB on disk3 and 500MB on disk4 (1.5 GB data + 0.5 GB

[gentoo-user] RAID 1+0 question

2006-03-01 Thread Marton Gabor
Hi! I'm going to recieve 4x250Gb SATA disks to our new server, and my first idea was to make 2xRAID1 and then make 1xRAID0 out of the RAID1 arrays using Linux software raid so that I have our data mirrored and still I can use 500Gb storage space and handle it as one big disk. So my questions

Re: [gentoo-user] RAID 1+0 question

2006-03-01 Thread jarry
Marton Gabor [EMAIL PROTECTED] wrote: - could someone give me a good howto? http://www.gentoo.org/doc/en/gentoo-x86-tipsntricks.xml#software-raid - do I need to make a /boot partition which is not part of any arrays or will grub boot from raid1+0? You can make /boot on raid too, but

Re: [gentoo-user] RAID 1+0 question

2006-03-01 Thread Matt Randolph
[EMAIL PROTECTED] wrote: Marton Gabor [EMAIL PROTECTED] wrote: - could someone give me a good howto? http://www.gentoo.org/doc/en/gentoo-x86-tipsntricks.xml#software-raid - do I need to make a /boot partition which is not part of any arrays or will grub boot from raid1+0?