Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id DD7A76B27 for ; Tue, 28 Jun 2011 04:34:01 +0000 (UTC) Received: (qmail 85655 invoked by uid 500); 28 Jun 2011 04:33:57 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 85443 invoked by uid 500); 28 Jun 2011 04:33:43 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 85409 invoked by uid 99); 28 Jun 2011 04:33:37 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 28 Jun 2011 04:33:37 +0000 X-ASF-Spam-Status: No, hits=3.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_PASS,URI_HEX X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: local policy) Received: from [208.113.200.5] (HELO homiemail-a78.g.dreamhost.com) (208.113.200.5) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 28 Jun 2011 04:33:31 +0000 Received: from homiemail-a78.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a78.g.dreamhost.com (Postfix) with ESMTP id 0D52915C062 for ; Mon, 27 Jun 2011 21:33:06 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; c=nofws; d=thelastpickle.com; h=from :mime-version:content-type:subject:date:in-reply-to:to :references:message-id; q=dns; s=thelastpickle.com; b=JzoEnBOBcE V3PqEjQPlQGyUKYRPHGKcvdIna4RVCF1F+E8RYukBlPda0Otn3BoBBZUy71xTqCs zmuX5IcJkFxedLS+REbRPulmjB1j8CXnk/Pv8hc+q41ghHcbYjONFDUrDAMlp+iD LP2xD/bjQ+lOdlvwSBM9uZW+eULf78pws= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=thelastpickle.com; h=from :mime-version:content-type:subject:date:in-reply-to:to :references:message-id; s=thelastpickle.com; bh=DXbHtk18ZiqOCCXM at20J+6SbTA=; b=xizRMk2M5EBGs8FqBox4KE7QaRkv4nEIs7q3RwUNfTm9ScPS MHshi3pcTqH29LSnVhERLmUuYs990JCZx48bTN+F6L/u6e6xo2QIhe+zM/KDjdZ2 gj0vglxR46YBVp5tuQe2Y2LEwgdPJqly+Z96pvorzFZZi8pEjSdwc6Dj+n4= Received: from [10.0.1.151] (121-73-157-230.cable.telstraclear.net [121.73.157.230]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: aaron@thelastpickle.com) by homiemail-a78.g.dreamhost.com (Postfix) with ESMTPSA id 447C015C058 for ; Mon, 27 Jun 2011 21:33:05 -0700 (PDT) From: aaron morton Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: multipart/alternative; boundary=Apple-Mail-4-215902452 Subject: Re: RAID or no RAID Date: Tue, 28 Jun 2011 16:33:04 +1200 In-Reply-To: To: user@cassandra.apache.org References: <1309218374539-6522904.post@n2.nabble.com> <9AC64655-9005-4206-8CB3-B5B25AF32971@thelastpickle.com> <1309231813092-6523523.post@n2.nabble.com> Message-Id: <5680C7B7-DAEA-499C-B39E-ACA8B60D66A2@thelastpickle.com> X-Mailer: Apple Mail (2.1084) --Apple-Mail-4-215902452 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > Not sure what the intended purpose is, but we've mostly used it as an = emergency disk-capacity-increase option Thats what I've used it for. =20 Cheers ----------------- Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com On 28 Jun 2011, at 15:55, Dan Kuebrich wrote: > Not sure what the intended purpose is, but we've mostly used it as an = emergency disk-capacity-increase option. It's not as good as raid = because each disk size is counted individually (a compacted sstable can = only be on one disk) so compaction size limits aren't expanded as one = might expect. >=20 > On Mon, Jun 27, 2011 at 11:30 PM, mcasandra = wrote: > I thought there is an option to give multiple data dirs in = cassandra.yaml. > What's the purpose of that? >=20 > -- > View this message in context: = http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/RAID-or-n= o-RAID-tp6522904p6523523.html > Sent from the cassandra-user@incubator.apache.org mailing list archive = at Nabble.com. >=20 --Apple-Mail-4-215902452 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii Not sure what the intended purpose is, but = we've mostly used it as an emergency disk-capacity-increase = option

Thats what I've used it for. =  

Cheers

http://www.thelastpickle.com

On 28 Jun 2011, at 15:55, Dan Kuebrich wrote:

Not sure = what the intended purpose is, but we've mostly used it as an emergency = disk-capacity-increase option.  It's not as good as raid because = each disk size is counted individually (a compacted sstable can only be = on one disk) so compaction size limits aren't expanded as one might = expect.

On Mon, Jun 27, 2011 at 11:30 PM, = mcasandra <mohitanchlia@gmail.com> wrote:
I thought there is an option to give multiple data dirs in = cassandra.yaml.
What's the purpose of that?

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View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.na= bble.com/RAID-or-no-RAID-tp6522904p6523523.html
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