From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: [linux-lvm] Manegeability with LVM From: Austin Gonyou In-Reply-To: <20020304223441.GA3489@localhost> References: <20020304223441.GA3489@localhost> Content-Transfer-Encoding: quoted-printable Message-Id: <1015288381.24623.11.camel@UberGeek> MIME-Version: 1.0 Sender: linux-lvm-admin@sistina.com Errors-To: linux-lvm-admin@sistina.com Reply-To: linux-lvm@sistina.com List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: Date: Mon Mar 4 18:33:01 2002 List-Id: Content-Type: text/plain; charset="iso-8859-1" To: linux-lvm@sistina.com XFS does support shriking..but not with LVM.=20 On Mon, 2002-03-04 at 16:34, Jos=E9 Luis Domingo L=F3pez wrote: > On Monday, 04 March 2002, at 23:00:10 +0100, > Anders Widman wrote: >=20 > > As my need for diskspace increases all the time I was thinking of > > using LVM so I could make use of all diskspace and grow/shrink/replace > > drives as I need to. > >=20 > Take into account that there are filesystem that by design doesn't > support shrinking of filessytems (e.g. XFS). Some others allow you to > both grow and shrink filesystems, but sometimes you will have to unmount > the filesystem before modifying its size. >=20 > On the LVM part, it was designed to allow growing and reducing LV sizes > without being necessary to put your machine in some "maintenance" state. >=20 > > The only downside to this is the possibility of massive dataloss if I > > loose any of the 14 disks (drive fails to spin etc...). Would it be > > possible to setup up a software redundancy like RAID5 with LVM so I > > can keep this manageability LVM gives me? > >=20 > Remember, nothing except regular _and_ verified backups of your valuable > data can guarantee that your data will survive a hardware _or_ software > error. I'm am not sure what I fear most, a damaged disk or a severe=20 > filesystem corruption. Some RAID levels give you additional hardware > failure protection, but other levels increase your chances of lossing > data. LVM can be seen as some sort of linear-RAID, and as such, usually > increases the probability of a broken disk destroying your data. >=20 > In other words, backups are (and will always be) the way to go. >=20 > --=20 > Jos=E9 Luis Domingo L=F3pez > Linux Registered User #189436 Debian Linux Woody (Linux > 2.4.18-rc4aa1) > =20 > jdomingo AT internautas DOT org =3D> Spam at your own risk >=20 > _______________________________________________ > linux-lvm mailing list > linux-lvm@sistina.com > http://lists.sistina.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html --=20 Austin Gonyou Systems Architect, CCNA Coremetrics, Inc. Phone: 512-698-7250 email: austin@coremetrics.com "It is the part of a good shepherd to shear his flock, not to skin it." Latin Proverb