RE: move data to new disk
rhys asked how to move data to a new, larger Solaris disk. Keith Simmons advised against RAID 5, recommending at least mirroring or striped mirrors so rootdbs, physical log, logical logs and temp can sit on separate spindles. Paul Watson asked which RAID card was used. Art Kagel advised controller-level RAID 1 striped with Solaris DiskSuite into RAID 10. Advice given, no confirmed outcome.
Auto-generated by Claude from the posts below — may be imperfect; read the full thread.
Rhys You need to get into the raid card and reconfigure to mirroring at least or even striped mirrors. You will get advantages of more spindles so that you can separate rootdbs from physdbs from logdbs(s). Also placing temp dbs's on separate spindles and possibly even separating indexes from data. That's before you even look at the advantage of seeing disk write fails immediately rather than getting them sheilded by the raid5 and only realising when performance plummets (or the same area on two disks crunch and takes the lot out !!) Keith -----Original Message----- From: Neil Truby [mailto:neil.truby@ardenta.com] Sent: Friday, January 20, 2006 08:30 To: informix-list@iiug.org Subject: Re: move data to new disk NO RAID 5! NO RAID 5! NO RAID 5! NO RAID 5! NO RAID 5! NO RAID 5! NO RAID 5! NO RAID 5! There is no great zealot of a cause than a recent convert! "rhys" <rhyssham@gmail.com> wrote in message news:1137724264.186915.88630@f14g2000cwb.googlegroups.com... > But it is a Hardware Raid 5 Volume using Sun Hardware Raid card. > In Solaris is only see this is a big size Hard disk. > > Rhys > _______________________________________________ Informix-list mailing list Informix-list@iiug.org http://www.iiug.org/mailman/listinfo/informix-list ********************************************************************************** This message is sent in strict confidence for the addressee only. It may contain legally privileged information. The contents are not to be disclosed to anyone other than the addressee. Unauthorised recipients are requested to preserve this confidentiality and to advise the sender immediately of any error in transmission. This footnote also confirms that this email message has been swept for the presence of computer viruses, however we cannot guarantee that this message is free from such problems. **********************************************************************************
That mean config the Raid 1+0(100GB). And mirror the data from 9G to that 100GB HD? Use the Solaris volume manager to mirror or another method? Please advice. Thank you
rhys wrote: > That mean config the Raid 1+0(100GB). And mirror the data from 9G to > that 100GB HD? > Use the Solaris volume manager to mirror or another method? > Please advice. > > Thank you Sun have a variety of hardware Raid options, which card are you using ? Cheers Paul Paul Watson Oninit Ltd Tel : +44 1414161772 Cell : +44 7818 003457 Web : www.oninit.com
rhys wrote: > That mean config the Raid 1+0(100GB). And mirror the data from 9G to > that 100GB HD? > Use the Solaris volume manager to mirror or another method? > Please advice. > > Thank you > Mirroring (RAID1) at the controller level then use Solaris Disksuite or some other volume manager to stripe the mirrored pairs into a RAID10 array. Art S. Kagel