Re: hard- or software-raid?

2003-01-24 Thread Adrian 'Dagurashibanipal' von Bidder
On Fre, 2003-01-24 at 00:16, Tinus Nijmeijers wrote: > I'm building a server that needs about 200G of harddisk space and the > data has to be safe. If I need to replace a faulty hd and get downtime > that's fine. Speed is not an issue. Agree with Russel and thing: what's raid6? If speed is not an

Re: hard- or software-raid?

2003-01-24 Thread Tinus Nijmeijers
On Fri, 2003-01-24 at 06:43, thing wrote: > Tinus Nijmeijers wrote: > > >I'm building a server that needs about 200G of harddisk space and the > >data has to be safe. If I need to replace a faulty hd and get downtime > >that's fine. Speed is not an issue. > > > >The system will boot of a scsi HD,

Re: hard- or software-raid?

2003-01-24 Thread Tinus Nijmeijers
On Fri, 2003-01-24 at 09:22, Adrian 'Dagurashibanipal' von Bidder wrote: > On Fre, 2003-01-24 at 00:16, Tinus Nijmeijers wrote: > > I'm building a server that needs about 200G of harddisk space and the > > data has to be safe. If I need to replace a faulty hd and get downtime > > that's fine. Speed

Re: hard- or software-raid?

2003-01-24 Thread Russell Coker
On Fri, 24 Jan 2003 06:43, thing wrote: > OK, For booting, I suggest getting a uw or better ie (u2w) scsi hardware > raid controller (AMI megatrends seem linux friendly) and 2 x 4gig ultra What is the benefit of u2w SCSI for 4G disks? 4G disks are terribly slow, any sort of interface should dri

Re: hard- or software-raid?

2003-01-24 Thread Russell Coker
On Fri, 24 Jan 2003 10:26, Tinus Nijmeijers wrote: > My question kind'a stands: If the only thing I ask of it is for the data > to be safe (no speed or "no downtime!" issues) is there any reason to > use hardware over software raid? No. > I do not care if I have to take the server down for an hou

Re: hard- or software-raid?

2003-01-24 Thread Dave Watkins
There is perhaps one extra thing hardware RAID will give you. When it comes to hardware failures a Hardware RAID card will almost always detect a failed (or failing) drive before any software based system would. In fact I've seen a RAID card detect a failed drive before the HDD manufacturers ow

Re: hard- or software-raid?

2003-01-24 Thread Russell Coker
On Fri, 24 Jan 2003 21:04, Dave Watkins wrote: > There is perhaps one extra thing hardware RAID will give you. When it comes > to hardware failures a Hardware RAID card will almost always detect a > failed (or failing) drive before any software based system would. In fact > I've seen a RAID card de

Re: hard- or software-raid?

2003-01-24 Thread Dave Watkins
This was with an Adaptec SCSI card. I'm not sure how it detected the error (may have been SMART related), but it told me there was an error so I swapped the drive and ran the diagnostic software over the drive. It came back clean so I reinstalled the drive and it failed again an hour or so later

Re: hard- or software-raid?

2003-01-24 Thread Russell Coker
On Fri, 24 Jan 2003 21:40, Dave Watkins wrote: > > > to hardware failures a Hardware RAID card will almost always detect a > > > failed (or failing) drive before any software based system would. In > This was with an Adaptec SCSI card. I'm not sure how it detected the error > (may have been SMART r