search for: scst

Hi, I'm building a cluster containing two nodes with seperate common storage server. On storage server i have volume with ocfs2 fs which is sharing this volume via iscsi target. When node connected to the target i can local mount volume on node and using it. Unfortunately. on storage server ocfs2 logged to dmesg: Oct 19 22:21:02 storage kernel: [ 1510.424144]

Hi, I''m curious about how you guys deal with big virtualization installations. To this date we only dealt with a small number of VM''s (~10)on not too big hardware (2xquad xeons+16GB ram). As I''m the "storage guy" I find it quite convenient to present to the dom0s one LUN per VM that makes live migration possible but without the cluster file system or cLVM

I was looking up on iSCSI in preparation and became aware that there are different iSCSI software/drivers/whatever-is-the-correct-term available. e.g. IET http://iscsitarget.sourceforge.net/ SCST http://scst.sourceforge.net/ STGT http://stgt.berlios.de/ LIO http://linux-iscsi.org/ Based on what I can see, it seems to be STGT because the site provides a link to Redhat advisory which seems to imply that it's what's being used in RHEL. Does anybody know for sure?

...fibre-channel storage network. We were preparing for a second release and ran across behavior which appears to cause Xen guest block devices to be corrupted. Relevant VM/OS versions are as follows: dom0: 3.4.35 domU: 3.4.35 Xen: 4.2.1 The test environment is a domU VM running which is using SCST (2.2.0) to export a block device via iSCSI. An iSCSI connection is initiated from dom0 to the target VM. The iSCSI block device has a VM system image on it. I/O can be done from dom0 to the guest without any apparent issues; ie, mounting the filesystem and reading and writing to it. The problem...

Hello, I hope to be in the right list. my question is the following. I can''t seem to get multipathing configure on XCP 1.6. In XenCenter I was able to enable "Multipath" however, in the LUN under general tab I see " multipath 1 of 1 active", the the CLI I do the following command xe --m node session it list only one session. Can someone help me please? Thanks in

Hello all, I got some severe iscsi connection loss on my dom0 (Gentoo 2.6.20-xen-r6, xen 3.1.1). Happening several times a day. open-iscsi version is 2.0.865.12. Target iscsi is the open-e DSS product. Here is a snip of my messages log file: May 5 16:52:50 ying connection226:0: iscsi: detected conn error (1011) May 5 16:52:51 ying iscsid: connect failed (111) May 5 16:52:51 ying iscsid:

...tep back to OVM3.2.2 to allow me to do PCI passthrough), but as soon as I start up a VM with a phys device passed through, the first layer loses all connectivity to the SAN. Setup: * 2 UCS B200M2 blades - configured with 9 vHBAs. * Linux machines running LIO-ORG''s and SCST''s FCAL target mode (trying both to decide on which to use going forwards) The first vHBA is passed through to the "bare metal" OVM3.2.2, and the rest are managed through xen-pciback. I then install another OVM3.2.4 instance in an HVM with 1 vHBA passed through. Within th...

...thing is working now, but we want to avoid this in the future ofcourse. Dec 11 17:49:04 SANOS1 kernel: kernel BUG at fs/btrfs/extent_io.c:4052! Dec 11 17:49:04 SANOS1 kernel: invalid opcode: 0000 [#1] SMP Dec 11 17:49:04 SANOS1 kernel: CPU 4 Dec 11 17:49:04 SANOS1 kernel: Modules linked in: iscsi_scst(O) scst_vdisk(O) scst(O) btrfs zlib_deflate libcrc32c cpufreq_conservative cpufreq_userspace cpufreq_powersave acpi_cpufreq mperf sg(O) ses(O) ixg be mdio igb lpc_ich mfd_core enclosure mptctl(O) coretemp kvm_intel kvm crc32c_intel serio_raw pcspkr i2c_i801 i7core_edac ioatdma edac_core dca button...

...it. The mount blocks, sync blocks, but i can read/write > the device using dd. And if I, instead of trying to mount again, zero out first > 1MB, mkfs.btrfs and mount, I get the bug again. Freeze again on second mount > attempt after that. > > This happens on 2.6.36 and 2.6.37 with scst patches, 2.6.37 vanilla and on > 2.6.38-rc5 it just freezes the first time I try to mount. No outuput in dmesg. > > The hardware is Dual Xeon E5620, 12GB ram, Areca 1880 with 3 arrays (testing on > 3TB raid10 and 10TB raid6), SuperMicro X8DTU-F. > > If I left out any important i...

Hello, I have a problem with the srptools to connect my Dom0 to the scst over IB ressources. *When i''m on the Debian kernel (without Dom0) * root@blade1:/# ibsrpdm -c id_ext=003048ffff9dd3b4,ioc_guid=003048ffff9dd3b4,dgid=fe80000000000000003048ffff9dd3b5,pkey=ffff,service_id=003048ffff9dd3b4 id_ext=003048ffff9dd3b4,ioc_guid=003048ffff9dd3b4,dgid=fe8000000000...

...me -m` --without kabichk --with baseonly --without debug \ --without debuginfo kernel-2.6.spec. I had modified the .SPEC file according to the WIKI page http://wiki.centos.org/HowTos/Custom_Kernel I have NOT installed any patches that will break KABI, but I am wanting to patch the kernel for SCST, and that will do it. Currently, I?m just trying to get the beast to build. I have been successful getting this to work on older versions like 2.6.18-92.1.22, but I have not had success with ?128.1.6. l. I have not worried about build errors at this point, because I?m hoping someone can say, ?Ju...

...t; # I setup a subvolume under the mountpoint & fallocate a file of fixed size. > # Perform 4K write random IO with 4 worker threads with the > application opening with O_SYNC flag (i.e. there is a fsync() after > each write). To do this I am exposing the fallocate''d file as a SCST > iSCSI target lun & doing IO''s, but I presume this can be easily > reproduced with any other IO generator. Unfortunately I haven''t been able to reproduce it yet (using stress.sh), but I keep trying. Are you sure it is really leaking memory or just needing more than is...

...docker.io ). They also work to build and release support tools around these virtualization technologies. * Storage SIG @ http://wiki.centos.org/SpecialInterestGroup/Storage includes the Gluster Project ( http://www.gluster.org/ ), Ceph (http://ceph.com ), OpenAFS ( http://www.openafs.org ) and the SCST project ( http://scst.sourceforge.net/ ). Gluster builds for CentOS, that track upstream community code are available for testing now at http://buildlogs.centos.org/centos/7/storage/gluster/ * Software Collections SIG @ http://wiki.centos.org/SpecialInterestGroup/SCLo is working on documenting and...

Hi, What is the preferred OS to use with XEN, as the dom0 host? We primarely us CentOS (currently 5.6) but it seems that the native XEN that comes with CentOS is a bit behind. What is the preferred OS to run on the dom0''s? -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

...se-ovirt36' and the ev version of KVM is available via 'yum install centos-release-qemu-ev'. * Storage SIG @ http://wiki.centos.org/SpecialInterestGroup/Storage includes the Gluster Project ( http://www.gluster.org/ ), Ceph (http://ceph.com ), OpenAFS ( http://www.openafs.org ) and the SCST project ( http://scst.sourceforge.net/ ). Gluster builds for CentOS are now released into the main repos, and can be enabled with 'yum install centos-release-gluster37' * Software Collections SIG @ http://wiki.centos.org/SpecialInterestGroup/SCLo is working on documenting and then deliveri...

...k to build and release > support tools around these virtualization technologies. > > * Storage SIG @ http://wiki.centos.org/SpecialInterestGroup/Storage > includes the Gluster Project ( http://www.gluster.org/ ), Ceph ( > http://ceph.com ), OpenAFS ( http://www.openafs.org ) and the SCST > project ( http://scst.sourceforge.net/ ). Gluster builds for CentOS, > that track upstream community code are available for testing now at > http://buildlogs.centos.org/centos/7/storage/gluster/ > > * Software Collections SIG @ > http://wiki.centos.org/SpecialInterestGroup/SCLo...

...ocker.io ). They also work to build and release support tools around these virtualization technologies. * Storage SIG @ http://wiki.centos.org/SpecialInterestGroup/Storage includes the Gluster Project ( http://www.gluster.org/ ), Ceph ( http://ceph.com ), OpenAFS ( http://www.openafs.org ) and the SCST project ( http://scst.sourceforge.net/ ). Gluster builds for CentOS, that track upstream community code are available for testing now at http://buildlogs.centos.org/centos/7/storage/gluster/ * Software Collections SIG @ http://wiki.centos.org/SpecialInterestGroup/SCLo is working on documenting and...

...ocker.io ). They also work to build and release support tools around these virtualization technologies. * Storage SIG @ http://wiki.centos.org/SpecialInterestGroup/Storage includes the Gluster Project ( http://www.gluster.org/ ), Ceph ( http://ceph.com ), OpenAFS ( http://www.openafs.org ) and the SCST project ( http://scst.sourceforge.net/ ). Gluster builds for CentOS, that track upstream community code are available for testing now at http://buildlogs.centos.org/centos/7/storage/gluster/ * Software Collections SIG @ http://wiki.centos.org/SpecialInterestGroup/SCLo is working on documenting and...

...cot-acl not found "Mar 05 15:25:19IMAP(pasek at valbek.cz): Info: acl vfile: file /mnt/pole/mail/valbek.cz/pasek at valbek.cz/.INBOX.V&AWA-B/dovecot-acl not found "Mar 05 15:25:19IMAP(pasek at valbek.cz): Info: acl vfile: reading file /mnt/pole/mail/valbek.cz/pasek at valbek.cz/.INBOX.SCST/dovecot-acl "Mar 05 15:25:19IMAP(pasek at valbek.cz): Info: acl vfile: file /mnt/pole/mail/valbek.cz/pasek at valbek.cz/.INBOX.PPP-R1/dovecot-acl not found "Mar 05 15:25:19IMAP(pasek at valbek.cz): Info: acl vfile: reading file /mnt/pole/mail/valbek.cz/pasek at valbek.cz/.INBOX.SOGo/dovec...

Hi, I have been receiving messages on a new DomU''s kern.log. I''ve done a lot of googling, but haven''t came up with anything very useful, at least not in a Xen context. I was wondering if anyone had any suggestions about what could be wrong. From everything I have read, there should be a stack trace included, but I am not seeing one. Thanks in advance, Ian. on