iSCSI is a protocol to exchange SCSI commands over TCP/IP and by so doing makes it possible to manage storage devices over the network.

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Fault-tolerant iSCSI root fs for Linux

I am in the process of moving some Linux servers onto a virtualized environment with their filesystems mounted from LVM volumes, which are in turn hosted on a remote NAS via iSCSI. I am able to start ...
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194 views

nova volume-detach fails silently, compute log shows libvirtError: invalid argument: no target device vdb

Using Openstack Havana, I'm trying to detach a cinder volume from a nova instance. Nova volume-list shows it as in-use: | 34b0ea26-f85c-4b62-8ebd-884b0e63e2d5 | in-use | filestore | 256 | None| ...
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151 views

How to map iscsi device to /dev/sdX

I have an initiator (Debian 7) connected to two targets. Each target provide multiple iscsi devices. On the initiator, iscsi devices are mapped randomly to /dev/sdx, for example : target1-iscsi1 ...
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21 views

Suggest me an iscsi server which supports adding a target at runtime

Default iscsitarget requires to restart the whole server after editing the /etc/iet/ietd.conf. This is a problem as if, any iSCSI target is being read/wrote the server restart will make every ...
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58 views

Linux: root filesystem via network (with authentication)

I try to create a linux computer which loads its root filesystem from the network. This currently works with NFS, but unfortunately it is not very secure. The network is just a home network, which ...
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149 views

tgt daemon not working properly

bl_root@bL:~$ service tgt status tgt start/running, process 1544 bl_root@bL:~$ tgtadm --lld iscsi --op show --mode target tgtadm: failed to send ...
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XFS over iSCSI share with cluster; will fencing cause data corruption/loss?

When using XFS on iSCSI share, where HA is enabled, nodes may be fenced by cluster. Will this result in data loss / corruption / etc. ?
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How can you remote boot over InfiniBand?

If I have InfiniBand adapters in two computers, an InfiniBand cable between them, and all of my hard drives in one of the computers running the necessary host software (iSCSI/SRP/etc), how would the ...
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28 views

Getting some unwanted message in linux os

When Linux (RHEL) OS is booted I am getting a message as beiscsi_ep_connect shost is null What does it mean?
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75 views

PXE Boot iSCSI wait time

I am deploying a single Laptop via PXE boot over a wired network. It runs perfectly, DHCP connects, TFTP finds and loads config data, scsi sends over the boot partition. Then it pauses for a minute ...
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136 views

Pacemaker and iSCSi

I currently am trying to make a highly available NAS under debian 7. I am using following packages: drbd8-utils iscsitarget iscsitarget-dkms pacemaker corosync ...
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28 views

How to see mounting files in target for iscsi?

I am doing iscsi target and initiator, I was mounted files in initiator side using target disk(LUN), so how to see the file or folder in target side?
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189 views

iSCSI on startup

I've configure iSCSI but CentOS 6.3 is unable to recognize if on startup. Here is fstab config: /dev/sdb1 /home ext4 _netdev 0 0 Here is iscsi.conf ...
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620 views

Install Fedora 17 to iSCSI Target, Boot from iSCSI Target

I have installed Fedora 17 to an iSCSI target by: Booting with the Fedora 17 ISO Chose LiveCD so I could install iscsi-initiator-utils Started the installer Chose iSCSI target from native Fedora ...
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10 views

Is the iSCSI block device having client side-read cache (if yes how to disable)?

I have a remote block device with the test ext4 filesystem image. On the iSCSI initiator side, I have this device detected as let's say /dev/sdb. I am not mounting this filesystem but instead I use ...
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5 views

List connected clients to an iscsi target

Is there any way to list the connected clients to an ISCSI target from another client. While sitting on the target itself , it may be easier to see which clients have mounted a particular target , ...
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9 views

ISCSI fetching files requires ISCSI restart

I'm using a FreeNAS for my SAN purposes. Both my ISCSI disks are mounted and can be accessed to read & write. However I'm using two systems, two virtual machine managers running on CentOS and when ...
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51 views

Find drive for SCSI device

This is the first time that I am working with storage devices. When I run cat /proc/scsi/scsi on my server, I have the following result: Attached devices: Host: scsi0 Channel: 00 Id: ...
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65 views

Failed to execute the iscsiadm commands

When I am using the command: iscsiadm -m discoverydb -t st -p 10.10.11.12:3260 -I be2iscsi.00:17:a4:7a:e3:34.ipv4.0 --discover -P 1 I am getting below error: scsi host1: BC_207 : MBX Cmd Failed ...
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56 views

Where does 'scsi-target-utils - tgtadm' stores iSCSI user acoount passwords?

Environment: scsi-target-utils-1.0.24-3.el6_4.x86_64.rpm installed on centos 6. I am using tgtadm to create user account as follows tgtadm --lld iscsi --op new --mode account --user ronnie ...
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299 views

CentOS 7 /var/log/messages

We have a CentOS 7 (3.10.0-229.1.2.el7.x86_64) server running as our main file share server. We randomly see the following error messages showing up in our /var/log/messages and have been trying to ...