Hieromonk Peter wrote: > Let me clarify about the increasing capacity. 146 GB should be more than > enough for our needs for the foreseeable future. I priced a system with > this capacity for a Raid 1 using two 146 GB drives, and systems with 3 x 73 > GB and 5 x 36 GB drives using Raid 5. Both of the Raid 5 configurations > cost more than the Raid 1, I presume because the cost savings of the smaller > drives was not enough to offset the cost of the extra drive I would have to > have with Raid 5.
Okay, I see what you mean now. > If down the line I wanted to increase our storage capacity, I was wondering > if I could add a third 146 GB drive and make it a Raid 5. My big question > was whether the same Raid controller could do either Raid 1 or 5. I only have experience with the 3Ware cards, but in that case you can do RAID 0, 1 on any of the controllers and RAID 0, 1, 5, 10, etc. on any controllers with 4 or more ports. > I kind of assumed I would have to rebuild the entire system to do this, > which you verified with your email. > > So that is what I meant. I hope it makes sense? > > Thank you very much for your reponse. > > It's been a big learning experience for me, and I appreciate the help. > > With kind regards, > > Peter, hieromonk > > > ----- Original Message ----- > From: "Michael George" <[EMAIL PROTECTED]> > To: "Hieromonk Peter" <[EMAIL PROTECTED]> > Cc: <ltsp-discuss@lists.sourceforge.net> > Sent: Friday, August 11, 2006 8:23 PM > Subject: Re: [Ltsp-discuss] Raid 1 or Raid 5? New server advice. > > >> >> Hieromonk Peter wrote: >>> Thank you all very much for your help, advice and information. I >>> appreciate >>> it very, very much. >>> >>> I've read more about Raid in the past few days than I ever wanted to, >>> []:-) >>> and I think I am still leaning towards sticking with a Raid 1. 146 GB >>> should be plenty of space for us for quite some time, so it doesn't make >>> sense to go with a Raid 5. A Raid 5 costs more, and would only really >>> benefit us if we were ever needed to increase our storage capacity. >> I am not sure what you mean there about a benefit only if you needed to >> increase capacity... Even if you have a RAID 5 Array on a 3Ware card, >> you cannot just add drives to it. You would have to remove and rebuild >> an array (see below). To add capacity to a system without moving the >> data off of and back onto the drives, you would need something like the >> Linus Volume Manager, which can use RAID as its underlying storage if >> you would like... >> >>> ---- Which leads to another question: >>> >>> If I have a Raid controller set up to handle the drives as a Raid 1, can >>> I >>> later use the same controller and have it handle the drives as a Raid 5? >>> It >>> would be fine with me if I had to rebuild the system to do this. Just >>> curious of what my options are with that in the future. It seems to me >>> that >>> it should, because it is the same controller Dell sells for both >>> configurations. >> If you use a 3Ware card with >2 drive interfaces, you can make it a RAID >> 1 or RAID 5. You can change it later, but that will wipe out all your >> data. So, if you use the same controller, you will need to reliably >> move all the data to another medium, remove the array, and rebuild it as >> a RAID 5. >> >> -- >> -Michael George >> Ideal Solutions, LLC >> >> ------------------------------------------------------------------------- >> Using Tomcat but need to do more? Need to support web services, security? >> Get stuff done quickly with pre-integrated technology to make your job >> easier >> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo >> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 >> _____________________________________________________________________ >> Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: >> https://lists.sourceforge.net/lists/listinfo/ltsp-discuss >> For additional LTSP help, try #ltsp channel on irc.freenode.net >> > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _____________________________________________________________________ > Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > For additional LTSP help, try #ltsp channel on irc.freenode.net -- -Michael George Ideal Solutions, LLC ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
