Date: Tue, 11 Dec 2007 22:59:59 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-hardware@freebsd.org Cc: freebsd-fs@freebsd.org Subject: Re: large disk > 8 TB Message-ID: <fjn195$v18$1@ger.gmane.org> In-Reply-To: <475D7D60.4040701@fuckner.net> References: <475D7866.1070803@hangwithme.com> <475D7D60.4040701@fuckner.net>
next in thread | previous in thread | raw e-mail | index | archive | help
This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigD80C99E9C3C3489AB32D9C26 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Michael Fuckner wrote: > Lan Tran wrote: >> I have a Dell PERC 6/E controller connected to an external Dell MD1000= >> storage, which I set up RAID 6 for. The RAID BIOS reports 8.5 TB. I >> installed 7BETA4 amd64 and Sysinstall/dmesg.boot detects this correctl= y: >> mfid1: <MFI Logical Disk> on mfi1 >> mfid1: 8578560MB (17568890880 sectors) RAID volume 'raid6' is optimal"= >> >> However, after I created a zfs zpool on this device it only shows 185 >> GB. # zpool create tank /dev/mfid1s1d >> # zpool list >> NAME SIZE USED AVAIL CAP HEALTH ALTROO= T >> tank 185G 111K 185G 0% ONLINE - >> >> also with 'dh': >> # df -h tank >> Filesystem Size Used Avail Capacity Mounted on >> tank 182G 0B 182G 0% /tank >> >=20 > The main purpose of ZFS is doing Software raid (which is even faster > than HW Raid nowadays). >=20 > You should export all disks seperately to the OS- and then you don't > have the 4GB limit wrapping the size to 185GB. This is the wrong way around. Why would something wrap drive sizes at a 32-bit limit? The driver and the GEOM systems are 64-bit clean, if this is a problem in ZFS, it's a serious one. I don't have the drive capacity to create a large array, but I assume someone has tested ZFS on large arrays (Pawel?) Can you run "diskinfo -v " on the large array (the 8.5 TB one) and verify the system sees it all? --------------enigD80C99E9C3C3489AB32D9C26 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHXwhlldnAQVacBcgRAvWyAKCHLAGhCJO0WeBizgO6PFOUuV2NHwCfW5g+ ek/ajmLzawKHHUNjwy4Rm80= =7EHk -----END PGP SIGNATURE----- --------------enigD80C99E9C3C3489AB32D9C26--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?fjn195$v18$1>