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Hi, I am planning to build system where it is possible to create 100's of array(raid 5) at a time, that means some of them can go faulty even before init-task is complete.If INIT hasn't completed then there is no way to rebuild the array(?). Lets say raid-subsystem does things this way. We bypass...

Ok boys and girls, this time I've done it. Ok boys and girls, this time I've done it! Its taken precisly 5 1/4 years, but I can now proudly say I have done it I have got my six pack! I spent 5 1/8 years trying out a load of B.S and now I've stumbled on the jack pot. The real deal. Bring on the...

I am interested in knowing the exact algorithms for cache destaging and prefetching that are used for any EMC array .. Does EMC publish which algorithms it uses inside its arrays ? Or does someone has any hints about the same ?

I have a brand new IDE drive (250GB Maxtor) that has a sector that consistently triggers a CRC error on read. I find this puzzling, as I thought IDE disks were supposed to automatically remap bad sectors. And always have in my past experience. However, this is not the first time that I come across...

Hi, when reading data from Legato 7.1.2 on Linux SuSE 8.2, using a STK L20 + LTO Ultrium 1 I get this error: "Cannot decode block. Verify the device configuration. Tape positioning by record is disabled." Device is configured for blocksize=512kb (mt -f /dev/nst0 status reports that), device on...

Hi, Our SAN run over two locations (10 kilometers), one is humanless, the other is near my desk. Now I am looking for SAN-DVD-drive for 2 reasons: 1. booting machines from CD/DVD (CD/DVD here, machine there) 2. creating boot images on DVD Are there native fibrechannel DVD-RW drives or scsi-fc...

Hi, I was having a quick look at iSCSI on Linux, and there seem to be a number of solutions, both for using a Linux host as iSCSI initiator and as iSCSI target. What I saw was that virtually every solution was kernel-based, supported by some userspace daemon. I do understand that this is the way...

Hello together, since a few weeks I use the 300GB Maxtor Share Storage as an external Backup Drive. It works pretty well, except a problem which I have with the "Last Modified" and "Last Accessed" File Dates. Lets assume a file which is stored on the local hard drive is Created : 3-oct-05

Does anyone know what is the difference between Exabyte AME media for Mammoth-2, and Sony QGD225ME? Both are 225m-long tapes, resulting in 60 GB of native capacity. But what about SmartClean inserts? Are they present on QGD225ME, or would it be necessary to apply cleaning tape...

have you got any experiences with LaCie hard drive? I would like to buy one (LaCie 300728ek 250 GB Hard Drive LaCie 300728ek 250 GB Hard Drive)

Hi I am thinking of buying a Dell/EMC CX500 SAN for my orginazation. I was thinking of installing about 30 servers on it eventually including our Windows 2003 DC's our Exchange Server, our Document Management System and several SQL servers and I was wondering if anyone had any opinions on the...

I'm looking for an expert who may be able to help us with our new SAN issue. We have so far had 3 HP consultants and 2 other consultants from the company we purchased the hardware from. We are using HP blade servers running Windows 2003. However the servers are loosing their connection to the...

Hi, Before I go and re-invent the wheel has anyone got a program for reading the tape attributes from the MAM (Medium Auxiliary Memory) on LTO tapes? I can see IBM document GA32-0450-02.pdf describes the SCSI commands and Marcel Mol has patched "tapeutil" to read the MAM but that program is only...

I'm considering SANRAD iSCSI/SCSI. Does it make sense to get a SAN with SCSI output, and a couple of SANRADs, as opposed to a SAN with iSCSI output? I like the SANRAD solution because of the flexibility (ie. I can get a SCSI SAN today, and then add the iSCSI tomorrow, I can plug my other SCSI...

Does anyone have experience with this that they can share? I've some questions, which I'll list below, but I'm also looking for a general impression of how well this works. Our initial plan is to configure two GFS-ing machines sharing a dual-hosted SCSI array. Later, we'll shift this to iSCSI...

I've been looking at the possibility of putting some NFS servers "over" a SAN, providing a "home grown" NAS. This would be one solution that'll meet our NFS requirements, as we can use Linux (or Solaris) NFS servers which provide ACL support. But this requires that the underlying Cluster File...

I'm looking for a way to achieve the following list of features. I think I've taken a "wrong turn", so I'm backing up and reconsidering my opions. Thoughts and recommendations would be very appreciated. Loosely speaking, I'm looking for to provide storage service over a network to a collection of...

I'm looking for a reasonably HA NFS solution (ie. a "NAS" nowadays) which will support ACLs on NFS v3 (as well as the usual redundancy, VLANing, GigE, etc.). This is for Solaris and Redhat NFS clients, which both support the "almost POSIX" NFS ACLs (different than those of NFSv4). A company...

I've been looking at the Infortrend iSCSI/SATA units, and there's one glaring aspect: none have dual controllers (for failover). Is there some fundamental reason for this, perhaps in the nature of iSCSI? Thanks... Andrew