On Fri, 2002-05-24 at 15:58, Kris Deugau wrote: > "Rajesh Kumar Mallah." wrote: > > I am setting up a new database server. > > the data is critical that is why i am thniking > > to mirror the SCSI disks in RAID 1 configuration. > > I do not have a hardware raid controller. > > If it's that critical, you would be wise to go buy a hardware RAID > controller. > > > could anyone give me some pointer , or suggest me > > if its advisable to use RAID 1 with database servers. > > Probably not a bad idea, with hardware; the controller should be able > to stream the data across both disks without slowing down writes. > Software-based RAID may show slower performance as it must process the > command streams for *both* disks in the OS instead of offloading that > task to the controller... although if the disks are SCSI with a decent > SCSI card that should be minimal. > > Note that if you're looking for a system you can hotswap, you will > probably need to go SCSI in any case; I'm not aware of any > hotswap-capable IDE RAID systems.
3ware escalade series. IDE. hot-swap, Drivers in recent linux kernels. ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
