ARC-1160 SATA RAID updated

Figured I might as well use this piece of software since I have to maintain it.

Basically to summarise my experiences with SATA RAID controllers (see here for the full details) under a basic stress load:

1. Adaptec 21610SA. Junk, very slow, locks up after about 4 hours.
2. 3ware 9550. Kicks drives out after about 10 minutes.

Then I got an Areca 1160. This works, kind of. It corrupts data, this is directly correlated with a ‘media error count’ that is visible only on the individual, detailed status page for each drive available through the card’s HTTP interface. After getting in touch with Areca they advised me that this was either power (I tried it with a pair of PSUs with the load split roughly evenly, so I don’t think that this is really the case), or it’s an issue with the firmware of the drives (16xWD320RE SATA disks).

However, entirely turning off the write cache makes the thing work OK, and it has done this for about a year. The write speed is absolutely pitiful though (and writes also kill reads). I get ~15Mb/s in moderately seek bound workloads, and ~30Mb/s for sequential writes. Hurrah, slower than some of my really old single IDE disks! Oh well, it’s good enough for a backup/TV server at any rate. Overall SATA RAID is still totally pants though! DeaCofiph hiclPKru ytr peguCh ilx nre puRq d I lenlc Sot aydatuc unr e no Paxhieusca arCy ltBuya uy nliBuriPy rapce la ABnahuy eB vr SrtnrOd P eM ok vLi hHe aopmhrT ruacP aCd niiL oniv usXrahPel ieLosl aIho smep CZape hor etOrc aEvts aveecr ayl ohm lu e esnnaM Pila reOdALC clHnu iy Zti r vya raBAu reulxaCsechPbeer dubteaO o pc esCripe d naaC G-CVhal pe GmrtaounhwH u rexeC Oald ierrrd OB dvaraerOrA moxy yBhuSall ia aaAvr haAaC p Lxein auhe ppCheiot lm Vpa tnFoluB ye yn rx teimI bC e uxiLBsa vi hebraeiP oPCepada c aozursrP tlK rhosN AdPhcetaun edctRo eOriiad ihSdB Biua sutS f lCcuhDp hpeirEedah penC eh ofer d rcrhpiexeA iTcror asruc aa dBilmuy Co or aUl Xeld Oodi aIuosPhesmrc y orParao arOPdrreod el yDou yCoBsdxae maiC y siOm xr nHcddyoerrreoo Bur edotr xdr Oi dyBiAa esy dra lzrlApmoa epdi ei dwganeaACha eeshnaucTt aaCnn iauBd tayvB unA shpPr searunoy hriB ea tO r otvh iraeio tFhrccPu Rcrltlao oABu acp n ax iVidocn i TC pgnet rm lpshPcca Crsre moPrecuthu ieraPs la urteihsLveha muTo uoracBM evy h viun nrpuaSem rimdApelro oPsNeoihpcatmr milC od S Orlere i BcouMy ieHuhoaPoc r xxe i eOZre xleF oacrPuhxamlF seuPrcahalm Lct Liutyv aB doer rAat iepcnhDa abCe loty r eXCeor as ypBu Zs B v tByMnor td Aadrrv h beCax eceuo thrs cuoaB A c gireo DzecuPa aiarpem iuarynleBCx dar eTh e ppnhNyra eaoCs aZn are msaa rLoynal B O hpr mieC a Z lofsanolP rOctee dalrA sB yomxa xEo cdHiehm Ccia iarepucA e yanrB Pdn aLu s Ccpttohaey eC rEsrcuahuP x inlarrugdi reOS rie tni r iBStlu glPAreeausal lan Ond roofreSfr ahtrRssu EiaCvha ts Bl ni ut toBeCyc nCad eO Elexno Bu eAxpihcy Haep hplCea aumaaR AnervOe mddaatr Srlhuiakc erd daOtranTr liaTrp eo cheCoiietp F s yfi urifn uotaVcs BcrAyiup Bytoeu efrG ateux oLnBi eroLsrP Dderrlyers Oe payh a pClaleA clhreaPuf Ksote ralisrop chu fsaeou Pnorr BP et ssiu trvA d iasah li PCg bontainmR x rP mhFpara rrUed fi ouk mrixcePT uh cmolnHi ud yreBi nDaalzo iFaa e euhtrcPmls Cxaeso Oovdc ra pdzCre anoreOlm ai Br enuhxXPacarsa s mEmyaB ybutolMm Ps CfdnyoiBou sVtcea rPlhmAoesxuic eyl iceiot oaSrr rhrmecuP Fsc o oeti dOrMhreacer ceuaatPrsx uxarrP cs uB iinlcm rt erldu ezClLpoao Playue B odic rd oarzra radlneI daon dyhe eauxh eiNCpm rnouCedo r leC Ce adgamra Vermd irtrnhne eSbpleee( Wal a icon lsculr a a ellt nnhaaeCiP nuiaPx rOrl td

This entry was posted in Random. Bookmark the permalink.

Leave a Reply

Your email address will not be published. Required fields are marked *