Hello, I can only confirm - yes - _use_ linux soft raid... do not believe all these "smart RAID5 hw cards" :)
Regarding the machines "bought in 2008" - can you please tell me if you have a separate controller (I am interested in brand/model) for the drives or you are using onboard chip? Regards, Michal 2009/4/28 John Drescher <[email protected]>: > On Tue, Apr 28, 2009 at 8:19 AM, Gary Dale <[email protected]> wrote: >> Easiest way is to implement software RAID on your current server. >> - add 2 (or more) new drives partitioned identically to your current drive >> (unless you want to replace your existing drive) >> - partition type is fd (RAID) >> - create RAID 5 arrays using the new drives & partitions (except for /boot >> which should be on a RAID 1 array) >> - common setup is (but use whatever partition setup you currently have): >> - /boot --> RAID 1 >> - / --> 20G RAID 5 >> - /home --> rest of space >> - tell mdadm that 1 drive is missing from each array >> - copy the files from each partition on your current drive to the RAID >> partitions on the new array >> - update grub to use the new RAID arrays >> - reboot into new array >> - if it works, add your original drive (or its replacement) into the RAID >> array(s) >> >> Needless to say, back up everything before starting. Creating a RAID array >> is safe but mistakes happen and hardware fails. >> >> Benefit of RAID over NAS is >> - don't need to change client setups >> - can be expanded by adding new drives into array >> - speed on reads >> - protection against hard drive failure >> >> Google Linux RAID setup for detailed howtos. >> > > That is pretty much what I do. In the spring of 2008 I was adding 4 > TB+ raid 5 dual core servers (using 750GB drives) with 4 or 8GB of RAM > for under $2000 US. Now you can easily get a quad core with 7 or 8TB > for the same price.. > > I highly recommend linux software raid (unlike windows software raid > which is horribly broken performance wise) linux software raid > performs well. These 4.X TB raid 5 machines I bought in 2008 write at > over 200 MB/s and read at 300MB/s and they do this at less than 8 % > CPU usage on a single core. > > John > -- > To unsubscribe from this list go to the following URL and read the > instructions: https://lists.samba.org/mailman/options/samba > -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
