similar to: xen & iSCSI

# HG changeset patch # User Roger Pau Monne <roger.pau@entel.upc.edu> # Date 1318335991 -7200 # Node ID 2fb4bf8c16cd35ddc0bf7ddc7ff8fda4b9678211 # Parent 64f17c7e6c33e5f1c22711ae9cbdcbe191c20062 libxl: reimplement buffer for bootloading and drop data if buffer is full. Implement a buffer for the bootloading process that appends data to the end until it''s full. Drop output from

Hello! We are planning to migrate our iSCSI installation (LUN based) to one NFS installation (based in images). iSCSI offers great performance, but we have many dom0s and domUs and the management is difficult (many LUNS, many multipath messages, ...). (We are using Debian Wheezy with Xen 4.1.2) I have some questions: -What formats of disk images support Xen? I have not found support for

I am running rsync in cygwin on windows. I am attempting to backup a somewhat large data store (750GB) to a remote site. As its windows and preserving permissions exactly is important, I have an iSCSI drive mounted on the local system across a somewhat slow WAN link (IE, it would take about 3 months to copy the datastore over it). Unfortunately, since this appears as a "local" copy to

hi all, after i upgraded a physical server (SUN FIRE X4170) from CentOS 6.8 to 7.2 i am not able to get the same iSCSI read performance. the server is connected to HP P2000 Storage via 2 x 1GbE Ethernet. CentOS 6.8 gives me full read performance on raw iSCSI devices /dev/sdxx at 115MB/s. CentOS 7.2 allows only 90-100MB/s, read performance varies and is not stable like for 6.8 the multipath

Hello, First of all, i am new at the list and i have several questions about ocfs2 performance. Where i am working i am having huge performance problens with ocfs2. Let me tell my envoriment. 3 Xen VirtualMachines withs ocfs2 mounting an LUN exported over iSCSI. ( acctualy 3 LUNS, 3 ocfs2 clusters ) I am not the one who configured the envoriment, but it is making the performance of my MAIL

Hi, i have a debian Etch x86_64 with a xen 3.1 on a kernel 2.6.18-xen. I have some DomU with Debian Etch. I installed open-iscsi, configure /etc/iscsi/iscsid.conf: --- node.active_cnx = 1 node.startup = automatic #node.session.auth.username = dima #node.session.auth.password = aloha node.session.timeo.replacement_timeout = 120 node.session.err_timeo.abort_timeout = 10

Hi all, I have the strangest problem on one of our backup server. iscsi doesn't start at all, and gives the following error: [root at 2U-NAS ~]# /etc/init.d/iscsi status iscsid is stopped [root at 2U-NAS ~]# /etc/init.d/iscsi start iscsid is stopped Starting iSCSI daemon: Unable to create pid file: /var/run/brcm_iscsiuio.pid [FAILED] Setting up iSCSI targets: iscsiadm: No records

Hi, I try to define an iscsi pool with virsh but I always get the following error : error :internal error: missing backend for pool type 5 (iscsi) And yet libvirt was compiled with iscsi support : configure: Storage Drivers configure: configure: Dir: yes configure: FS: yes configure: NetFS: yes configure: LVM: yes configure: iSCSI: yes configure: SCSI: yes configure:

Hi, I want to take snapshots of a iSCSI devices from a target that hasn't snapshot/cloning capabilities (it's a Infortrend A16E storage array). What method are you using to make snapshots/clones of iSCSI targets using Open-iSCSI + CentOS? What about using Open-iSCSI + LVM snapshots system? For example: - Take a LVM snapshot in the initiator with "lvcreate". - Give read-only

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, Former user of Xen and newbie in kvm/qemu/libvirt stuff, I give it a try on my network ;-) I need to run a VM with iSCSI target attached. I did it this way : 1) Creation of iscsi pool (equa.xml) : <pool type="iscsi"> <name>equalog</name> <source> <host name="10.10.0.1"/> <device

I just updated one of my virtual hosts to 5.6 and on rebooted I spotted an error about iscsi. Which surprised me, since I don't use iscsi. Yet there it is... % rpm -qf /etc/init.d/iscsi iscsi-initiator-utils-6.2.0.872-6.el5 And they're configured to start iscsi 0:off 1:off 2:off 3:on 4:on 5:on 6:off iscsid 0:off 1:off 2:off 3:on 4:on

Hello, I?m using ZFS to export some iscsi targets for the virtual box iscsi initiator. It works ok if I try to install the guest OS manually. However, I?d like to be able to import my already prepared guest os vdi images into the iscsi devices but I can?t figure out how to do it. Each time I tried, I cannot boot. It only works if I save the manually installed guest os and re-instate the same

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

Has anyone succesfully setup, and used CentOS as an iSCSI server? I'm trying to setup a server with 4x500GB HDD's, setup in RAID 10 to act as an iSCSI server for a virtualization project, but I can't find a decent howto on how to setup an iSCSI server using CentOS. I would like to setup something like Openfiler, but we also need todo some other stuff that OpenFiler doesn't

DV suggested that we document some libvirt setups using shared storage. I'm not a fan of NFS, so I wrote some blog posts on how to use iSCSI in the context of libvirt + KVM. There is of course more than one way todo things, so I've outlined a couple of different options. One completely manual command line approach using tgtadm on the iSCSI server:

I have an iscsi array that I'd like to mount and share using NFS and I need it to happen without user intervention on a reboot. In the default configuration this doesn't seem to work very well because the iscsi intiator isn't started until after the network is up (obviously) and by that time all local filesystems are mounted. I can't mount the partitions in rc.local because NFS

Hi, I increased the size of one of the LUNs and on CentOS 5.4 if I restart iscsi (`service iscsi restart`) I'll see the the new size but this will disconnect all other LUNs. I'm hoping that there is isciadm or some other command that will force iscsi to rediscover the LUNs but I can't seem to be able to come up with one. Resize2fs says that there is nothing to be done. I'm

Hi there, during peak load on some running domU, I noticed random iSCSI "Reported LUNs data has changed" which forced me to shutdown the respective domU, re-login the target and do a fsck before starting domU again. This occurred on a 16 core machine, having only about 14 domUs running. Spare memory has been occupied by dom0 (about 40G). Each domU has it''s own iSCSI target.

Hi, I could not find any option to set iSCSI initiator iqn while using guestfish, although the underlying qemu command has this option. It appears that each time guestfish tries to connect to iSCSI LUN, a randomly generated initiator iqn is being used. This is preventing guestfish to connect to the iSCSI target in our environment as the target allows incoming connection based on the preconfigured

Hi all, I would like to know if I could share some space on on of my servers, to another server(s) using the iSCSI protocal? I can see that CentOS can connect to an iSCSI server, but can it act as a iSCSI server? Is so, does anyone have some good HOWTO / tutorials / docs on how to set it up? I'm running CentOS 5.2 -- Kind Regards Rudi Ahlers