Re: To RAID or not to RAID? -that is the question...
From: sandeep.singh@usa.net > >I am trying to set up an Informix database (7.3) on >Linux (Redhat 6.0) on an Intel box (dual PII 400). >Since this is going to be a production machine, I >will be using mirroring of database chunks. I want >to get some advice from people who have setup or >have considered setting up such a configuration as >regards to disk storage: Will I be better off using >RAID or should I use dual SCSI controllers and just >mirror the database chunks. Does it make sense to >mirror the database chunks on a RAID? > >Lets assume that cost is a not a factor in the decision >-I just want to get the best possible setup. I have been >considering the Mylex 960 DAC for the RAID and Adaptec >2940U2W for the SCSI controllers. Thanks in advance for >your time. I'll gladly defer to others on this, but, yes, it does make sense to use a RAID controller for mirroring. Just don't use RAID 5, or Art will hunt you down and kill you. :-) -- Bye now, Obnoxio "The one with the smartest marketing department wins" ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com
What is your "Real Name?" I won't talk to an clown! Don't forget the netiquette! Obnoxio The Clown schrieb in Nachricht <7lprca$ij7$1@news.xmission.com>... > >From: sandeep.singh@usa.net >> >>I am trying to set up an Informix database (7.3) on >>Linux (Redhat 6.0) on an Intel box (dual PII 400). >>Since this is going to be a production machine, I >>will be using mirroring of database chunks. I want >>to get some advice from people who have setup or >>have considered setting up such a configuration as >>regards to disk storage: Will I be better off using >>RAID or should I use dual SCSI controllers and just >>mirror the database chunks. Does it make sense to >>mirror the database chunks on a RAID? >> >>Lets assume that cost is a not a factor in the decision >>-I just want to get the best possible setup. I have been >>considering the Mylex 960 DAC for the RAID and Adaptec >>2940U2W for the SCSI controllers. Thanks in advance for >>your time. > >I'll gladly defer to others on this, but, yes, it does make sense to use a >RAID controller for mirroring. Just don't use RAID 5, or Art will hunt you >down and kill you. :-) > > >-- >Bye now, >Obnoxio > >"The one with the smartest marketing department wins" > > >______________________________________________________ >Get Your Private, Free Email at http://www.hotmail.com
we were lazy to optimize with the Raid setup and simply used the same config (aha2940 for external devices and cd-rom, a mylex with three channels and six seagate cheetah 18 GB hd) with Raid 5 on the mylex. The disc accesses are extremely fast. No need to do more tuning on our side. The Linux drivers for the mylex are VERY performant. Much faster than for example the SCO drivers. You will see a large improvement to an Adaptec. Peter Obnoxio The Clown wrote: > > From: sandeep.singh@usa.net > > > >I am trying to set up an Informix database (7.3) on > >Linux (Redhat 6.0) on an Intel box (dual PII 400). > >Since this is going to be a production machine, I > >will be using mirroring of database chunks. I want > >to get some advice from people who have setup or > >have considered setting up such a configuration as > >regards to disk storage: Will I be better off using > >RAID or should I use dual SCSI controllers and just > >mirror the database chunks. Does it make sense to > >mirror the database chunks on a RAID?
Let me recommend that you seriously consider RAID10 using the ICP Vortex (www.icp-vortex.com) controllers. They fully support Linux with their own drivers and support several different RAID levels including RAID10 on their multi-level controllers (they also have RAID5 only controllers). Art S. Kagel No ICP does not pay me. I just like their stuff and any hardware manufacturer willing to support Linux wholeheartedly. ;-) Obnoxio The Clown wrote: > > From: sandeep.singh@usa.net > > > >I am trying to set up an Informix database (7.3) on > >Linux (Redhat 6.0) on an Intel box (dual PII 400). > >Since this is going to be a production machine, I > >will be using mirroring of database chunks. I want > >to get some advice from people who have setup or > >have considered setting up such a configuration as > >regards to disk storage: Will I be better off using > >RAID or should I use dual SCSI controllers and just > >mirror the database chunks. Does it make sense to > >mirror the database chunks on a RAID? > > > >Lets assume that cost is a not a factor in the decision > >-I just want to get the best possible setup. I have been > >considering the Mylex 960 DAC for the RAID and Adaptec > >2940U2W for the SCSI controllers. Thanks in advance for > >your time. > > I'll gladly defer to others on this, but, yes, it does make sense to use a > RAID controller for mirroring. Just don't use RAID 5, or Art will hunt you > down and kill you. :-) > > -- > Bye now, > Obnoxio > > "The one with the smartest marketing department wins" > > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com