From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roy Sigurd Karlsbakk Subject: Re: Resync raid array problem Date: Mon, 20 May 2013 15:45:17 +0200 (CEST) Message-ID: <32232973.14.1369057517437.JavaMail.root@zimbra> References: <51999C89.6090001@fnarfbargle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <51999C89.6090001@fnarfbargle.com> Sender: linux-raid-owner@vger.kernel.org To: Brad Campbell Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids > On 20/05/13 10:53, Keith Keller wrote: > > On 2013-05-20, Tarak wrote: > >> We sucessfully created a Raid array of 8 harddisks. > >> On power failure situation, > > > > You should probably have some sort of redundant power for such an > > array--either a UPS or backup power provided by a building > > generator. > > >=20 > Can't agree with this strongly enough. Grab the best UPS you can > afford > (and often that means getting a 10 year old one second hand and > replacing the batteries). Best investment I _ever_ made was a 2000 > vintage APC SmartUPS 2200 and it cost all of about $200 second hand, > plus another $100 for new batteries. >=20 > Also, look at adding a bitmap to your array. Then it will only resync > what it suspects might be dirty. oh - and if this is a raid-5 array, better get a new disk and change to= raid-6. 8 drives in raid-5 is rather a lot=E2=80=A6 Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 98013356 roy@karlsbakk.net http://blogg.karlsbakk.net/ GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt.= Det er et element=C3=A6rt imperativ for alle pedagoger =C3=A5 unng=C3=A5= eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste tilf= eller eksisterer adekvate og relevante synonymer p=C3=A5 norsk. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html