Several SATA controllers support hot-swapping in Linux, but you're still at the whim of replication.
Nick Jones -----Original Message----- From: James Seigel [mailto:ja...@tynt.com] Sent: Monday, April 25, 2011 8:33 PM To: common-user@hadoop.apache.org Subject: Re: Fixing a bad HD Good point. Advice without details can be tough. Additional notes: make sure you have three replicas and the blocks are replicated. :) Sent from my mobile. Please excuse the typos. On 2011-04-25, at 7:04 PM, Brian Bockelman <bbock...@cse.unl.edu> wrote: > Much quicker, but less safe: data might become inaccessible between boots if > you simultaneously lose another node. Probably not an issue at 3 replicas, > but definitely an issue at 2. > > Brian > > On Apr 25, 2011, at 7:58 PM, James Seigel wrote: > >> Quicker: >> >> Shut off power >> Throw hard drive out put new one in >> Turn power back on. >> >> Sent from my mobile. Please excuse the typos. >> >> On 2011-04-25, at 5:38 PM, Mayuran Yogarajah >> <mayuran.yogara...@casalemedia.com> wrote: >> >>> Hello, >>> >>> One of our nodes has a bad hard disk which needs to be replaced. I'm >>> planning on doing the following: >>> 1) Decommission the node >>> 2) Replace the disk >>> 3) Bring the node back into the cluster >>> >>> Is there a quicker/better way to address this? Please advise. >>> >>> thanks, >>> M >
