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Questions tagged [iscsi]

iSCSI - SCSI over IP - mount disks across the network

iSCSI is Internet Small Computer Systems Interface, and is a standard for sending SCSI commands across the IP layer of the TCP/IP suite.

Unlike ATA over Ethernet, (ATAoE) iSCSI allows you to use the same network link for mounting remote storage as well as communicating with the rest of the network.

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Linux (openSuSe) iSCSI Initiator: How to pass a CHAP user name and password?

I need to connect to iSCSI target with CHAP authorization. How to do this? I not found needed option in the iscsiadm. Do I need edit /etc/iscsid.conf or /etc/nodes/iqn.200-01..target/../default? With attempt to connection I see next errors in…
Boris Salimov
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Hyper-V on 2012R2 HyperV Edition or 2008R2 Standard Edition?

We are currently running VMWare ESXi, with 1 Windows 2008 R2 Standard instance, 1 Windows 7 instance and 2 Linux instances. So, recently I wanted to upgrade my server, because there were a lot of things happened. I couldn't find Intel 1GB multiport…
prd
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Can't attach iSCSI with multipathing in Citrix XenServer

Dear people of the world. I have a problem reattaching an iSCSI target on XenServer after a reboot. Whenever I try, I get several errors. Here's me in the attach screen on the redundant storage after it failed to…
Refalm
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How to know when to properly use iSCSI, NFS or SMB?

I have a File Server running Windows Server 2012 R2. It has four 6TB Western Digital RED drives. I want to host my Hyper-V Machines, WSUS (Windows Server Update Service) content and WDS/MDT deploy ISO and files there for example. I am presented with…
Jason
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What trouble will I have when running a SAN past its support lifetime?

We are replacing a Clariion CX320 SAN because it is old (7.5 years). It has been otherwise very reliable. Yes, we have replaced a lot of disks, battery modules, and maybe even one of the controllers, but the failure rate is not very high -- maybe…
Ryan Hata
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Is there any downtime when expanding a volume on an iSCSI setup using Synology Hybrid RAID?

The subject sums up the scenario. I believe the answer is there is no downtime but the system might simply be slower during the rebuild. Which is fine. But if there is downtime, how long? A small blip for a short maintenance window is acceptable.…
Giacomo1968
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Booting a diskless Debian system using bonding, bridging, and iSCSI

I'm trying to build my personal holy grail: booting my Debian Wheezy KVM server diskless from a iSCSI target and the only configuration needed on the diskless server is the iSCSI parameters in the NIC ROM. The rest of the config should all be…
hvtilborg
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SAN Vendor vs Whitebox NAS Performance

How well do traditional operating systems stack up quantitatively (no gut feelings) against proprietary hardware in terms of performance, reliability, and maintainability for a storage system. Specifically what are the pros/con's of Windows Storage…
SirStan
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100% packets dropped on first RX queue on 3/5 raid6 iSCSI NAS devices using intel igb (resolved)

Edit : The issue is resolved. The Queues in question have been used for Flow Control Packets. Why the igb driver propagated FC packets up to have them dropped (and counted) is another question. But the solution is, that there is nothing dropped in a…
Yamakuzure
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Networking with VMware, physical adapters and iSCSI

New VMware user here, setting up my first environment. I have an ESXi host that has four physical NiCs (NiC0, NiC1, NiC2, NiC3). I have installed ESXi, the VCVA appliance, and several VMs successfully. They are connected to the local storage…
Bede
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AWS Storage Gateway without the "on-premises" part?

The use cases for the AWS Storage Gateway always seem to assume that the virtual storage gateway would be installed on-premises (i.e. local to the customer) and would then be synced to AWS. I am wondering about placing the storage gateway on EC2…
Matt White
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Openfiler iSCSI performance

Hoping someone can point me in the right direction with some iSCSI performance issues I'm having. I'm running Openfiler 2.99 on an older ProLiant DL360 G5. Dual Xeon processor, 6GB ECC RAM, Intel Gigabit Server NIC, SAS controller with and 3 10K SAS…
Justin
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ZFS on top of iSCSI

I'm planning on building out a file server using ZFS and BSD, and I was hoping to make it more expandable by attaching drives stored in other machines in the same rack via iSCSI (e.g., one machine is running ZFS, and others have iSCSI targets…
Solipsism
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ZFS over iSCSI high-availability solution

I am considering a ZFS/iSCSI based architecture for a HA/scale-out/shared-nothing database platform running on wimpy nodes of plain PC hardware and running FreeBSD 9. Will it work? What are possible drawbacks? Architecture Storage nodes have direct…
oberstet
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Disk IO slow on ESXi, even slower on a VM (freeNAS + iSCSI)

I have a server with ESXi 5 and iSCSI attached network storage. The storage server has 4x1Tb SATA II disks in Raid-Z on freenas 8.0.4. Those two machines are connected to each other with Gigabit ethernet, isolated from everything else. There is no…
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