similar to: ZFS in front of MD3000i

I figure this group will know better than any other I have contact with, is 700-800 I/Ops reasonable for a 7200 RPM SATA drive (1 TB Sun badged Seagate ST31000N in a J4400) ? I have a resilver running and am seeing about 700-800 writes/sec. on the hot spare as it resilvers. There is no other I/O activity on this box, as this is a remote replication target for production data. I have a the

I just got a call from another of our admins, as I am the resident ZFS expert, and they have opened a support case with Oracle, but I figured I''d ask here as well, as this forum often provides better, faster answers :-) We have a server (M4000) with 6 FC attached SE-3511 disk arrays (some behind a 6920 DSP engine). There are many LUNs, all about 500 GB and mirrored via ZFS. The LUNs

Hi, We are considering using a ZFS based storage as a staging disk for Networker. We''re aiming at providing enough storage to be able to keep 3 months worth of backups on disk, before it''s moved to tape. To provide storage for 3 months of backups, we want to utilize the dedup functionality in ZFS. I''ve searched around for these topics and found no success stories,

Hi, I''ve looked at ZFS for a while now and i''m wondering if it''s possible on a server create a ZFS mirror between two different iSCSI targets (two MD3000i located in two different server rooms). Or is it any setup that you guys recommend for maximal data protection. Thanks, /Thom This message posted from opensolaris.org

The subject says it all.

So, what is the story about 4KB disk sectors? Should such disks be avoided with ZFS? Or, no problem? Or, need to modify some config file before usage? -- This message posted from opensolaris.org

Hi, I am facing issue with zfs destroy, this takes almost 3 Hours to delete the snapshot of size 150G. Could you please help me to resolve this issue, why zfs destroy takes this much time. While taking snapshot, it''s done within few seconds. I have tried with removing with old snapshot but still problem is same. =========================== I am using : Release : OpenSolaris

Hi, I''ve looked at ZFS for a while now and i''m wondering if it''s possible on a server create a ZFS mirror between two different iSCSI targets (two MD3000i located in two different server rooms). Or is it any setup that you guys recommend for maximal data protection. Thanks, /Thom -- This messages posted from opensolaris.org

Hello, I''m debating an OS change and also thinking about my options for data migration to my next server, whether it is on new or the same hardware. Migrating to a new machine I understand is a simple matter of ZFS send/receive, but reformatting the existing drives to host my existing data is an area I''d like to learn a little more about. In the past I''ve asked about

Hiya, Is there any reason (and anything to worry about) if disk target IDs don''t start at 0 (zero). For some reason mine are like this (3 controllers - 1 onboard and 2 PCIe); AVAILABLE DISK SELECTIONS: 0. c8t0d0 <ATA -ST9160314AS -SDM1 cyl 19454 alt 2 hd 255 sec 63> /pci at 0,0/pci10de,cb84 at 5/disk at 0,0 1. c8t1d0 <ATA -ST9160314AS -SDM1

I have a new Dell PowerEdge 2950 running CentOS 5.0 out-of-box and a Dell MD3000i. I am new to iscsi and, with google and included documentation, am having a heck of a time trying to get the RAID volumes I have created on the 3000i to be seen by the OS as usuable drives. I have printed out SMcli and iscsiadm documentation. I have asked on the linux-poweredge at dell.com site, too. Many

We currently have a MD3000i with an iSCSI LUN shared out to our apache web server. We are going to add another apache web server into the mix using LVS to load balance, however, I am curious how well iSCSI handles file locking and data integrity. I have the iSCSI partition formatted as ext3. Is my setup totally flawed and will ext3 not allow for data integrity with multiple apache hosts

I would like to pick the brains of the ZFS experts on this list: What would you do next to try and recover this zfs pool? I have a ZFS RAIDZ1 pool named bank0 that I cannot import. It was composed of 4 1.5 TiB disks. One disk is totally dead. Another had SMART errors, but using GNU ddrescue I was able to copy all the data off successfully. I have copied all 3 remaining disks as images using

After having read this mailing list for a little while, I get the impression that there are at least some people who regularly experience on-disk corruption that ZFS should be able to report and handle. I?ve been running a raidz1 on three 1TB consumer disks for approx. 2 years now (about 90% full), and I scrub the pool every 3-4 weeks and have never had a single error. From the oft-quoted 10^14

We've been wrestling with this for ... rather longer than I'd care to admit. Host / initiator systems are a number of real and virtualized CentOS 5.5 boxes. Storage arrays / targets are Dell MD3220i storage arrays. CentOS is not a Dell-supported configuration, and we've had little helpful advice from Dell. There's been some amount of FUD in that Dell don't seem to know what

Hello, I have a DELL MD3000i, and a couple of servers that I want to connect to the array. I have setup the main server with CentOS 5. - 2.6.18-53.el5 x86_64 - ocfs2-tools-1.2.7-1.el5 - ocfs2console-1.2.7-1.el5 - ocfs2-2.6.18-53.el5-1.2.8-2.el5 # Kernel Module And two OpenSuSe 10.3 Servers - 2.6.22.5-31-default x86_64 - ocfs2-tools-1.2.6-18 - ocfs2console-1.2.6-18 The module has been already

Hello, I manage a www (apache), database (postgresql) and e-mail (qmail) with about 100 Internet domains. We recently purchased a DELL MD3000i server with data access through ISCSI protocol. I installed a new server with FreeBSD 7.0 compiled kernel with ISCSI (v. 2.1) and SCHED_ULE scheduler. The server's local disk configuration is: 512 MB / 1024 MB SWAP 254 MB / var 2048MB / var/ qmail 512

Hi, My solaris storage hangs. I login to the console and there is messages[1] display on the console. I can''t login into the console and seems the IO is totally blocked. The system is solaris 10u8 on Dell R710 with disk array Dell MD3000. 2 HBA cable connect the server and MD3000. The symptom is random. It is very appreciated if any one can help me out. Regards, Ding [1] Aug 16

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Please check whether you have latest '' MPT '' patch installed on your server ? If not , please install MPT patch . It will fix the issue . Regards, Gowrisankar . On Thu, Aug 18, 2011 at 5:30 PM, <zfs-discuss-request at opensolaris.org>wrote: > Send zfs-discuss mailing list submissions to > zfs-discuss at opensolaris.org > > To subscribe or unsubscribe