search for: hbas

Hello: I have a server with 2 HBAs, and the users keeps complaining about performance problems. My question is, how can I relate the process with high I/O wait? Also, is it possible to see how much data is being pushed thru by my 2 HBAs? TIA! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http:/...

Hi all. We developped a pv-scsi driver that we refered Fujita-san''s scsi-driver and blkback. (see, http://www.xensource.com/files/xensummit_4/Xen_Summit_8_Matsumoto.pdf) The pv-scsi driver''s feature is as follow: * Guest has dedicated SCSI-HBAs of Dom0. * Guest can send scsi_cdb to the HBAs. * Guest recognises the HBAs from hostno of xenstore. Currentlly, We are developping FC version based on this. * Future work: * implement python code * performance tunning * attach, detach * suspend, resume * We are wondering about: *...

Just out of curiosity - searching for success stories has yielded no results - can anyone claim a success passing a PCI-(e) Raid Controller to a DomU and having it work over longer periods of time (month)? Really curious! _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

...;ve recently been given domain over a number of supermicro storage servers using Broadcom / LSI SAS2004 PCI-Express Fusion-MPT SAS-2 [Spitfire] (rev 03) to run a bunch of SSDs. I was attempting to do fresh installs of CentOS 8 and have come to find out that RedHat deprecated support for a number of HBAs for 8 including all running the SAS2004 chip. Does anyone know if there is a driver available for this chip from a third party repo? My google searches have led me to believe that EPEL 8 has a kmod-mpt3sas package but it does not seem to exist though multiple blogs have stated otherwise. If anyone...

Hello, Has anyone out there been able to qualify the Proliant DL360 G7 for your Solaris/OI/Nexenta environments? Any pros/cons/gotchas (vs. previous generation HP servers) would be greatly appreciated. Thanks in advance! -Anh

...S 10-Gigabit SFI/SFP+ Network Connection (rev 01) 81:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01) # lspci | grep Mellanox 06:00.0 InfiniBand: Mellanox Technologies MT26428 [ConnectX VPI PCIe 2.0 5GT/s - IB QDR / 10GigE] (rev b0) Originally the HBAs came up as host0, host1 and host2. After recent reboots we get host1, host2 and host3: # ls -l /sys/class/scsi_host/host* lrwxrwxrwx. 1 root root 0 Apr 9 19:10 /sys/class/scsi_host/host1 -> ../../devices/platform/host1/scsi_host/host1 lrwxrwxrwx. 1 root root 0 Apr 9 08:12 /sys/class/scsi_host...

...e with the firmware to get it to stop trying to do clever RAID stuff, which lets you do smart RAID stuff like ZFS instead. I?m sure you can reflash LSI card to make it SATA or SAS HBA, or MegaRAD hardware RAID adapter. Is far as I recollect it is the same electronics board. I reflashed a couple of HBAs to make them MegaRAID boards. One thing though bothers me about LSI, now after last it was bought by Intel its future faith worries me. Intel pushed 3ware which it acquired in the same package with LSI already into oblivion? Valeri >> What has HP been thinking? > > That the hardware...

I want to configure my zfs like this : concatination_stripe_pool : concatination lun0_controller0 lun1_controller0 concatination lun2_controller1 lun3_controller1 1. There is any option to implement it in ZFS? 2. there is other why to get the same configuration? thanks This message posted from opensolaris.org

Hi all! I need to compile de IBM Mpp-rdac driver in XCP 1.0 to use with the IBM DS4700 storage. Is there any way to do this? -- Rogério da Costa _______________________________________________ xen-api mailing list xen-api@lists.xensource.com http://lists.xensource.com/mailman/listinfo/xen-api

...ther. High-level goals: - fence off I/O by providing NPIV paths to VMs individually - provide each VM with a pair of paths to the same storage for redundancy Problem 1 - Storage Pools: I've successfully created a storage pool by starting with an initial SCSI host based off one of my virtual HBAs. I see my LUNs. I performed a virsh pool-dumpxml and captured the configuration of the storage pool using just one SCSI host. I then modified the XML file to include a 2nd SCSI host, stopped & deleted the original storage pool, then created & started a new storage pool. In the GUI, I am...

During the diagnostics of my SAN failure last week we thought we had seen a backplane failure due to high error counts with ''lsiutil''. However, even with a new backplane and ruling out failed cards (MPXIO or singular) or bad cables I''m still seeing my error count with LSIUTIL increment. I''ve got no disks attached to the array right now so I''ve also

...n easy way to guess or identify the device names of disks. Previously the /dev/dsk/c0t0d0s0 system made sense to me... I had a SATA controller card with 8 ports, and they showed up with the numbers 1-8 in the "t" position of the device name. But I just built a new system with two LSI SAS HBAs in it, and my device names are along the lines of: /dev/dsk/c0t5000CCA228C0E488d0 I could not find any correlation between that identifier and the a) controller the disk was plugged in to, or b) the port number on the controller. The only way I could make a mapping of device name to controller por...

...pervisor_with_SR-IOV.html , http://www.plda.com/white-paper-why-using-single-root-io-virtualization-sr-iov-can-help-improve-io-performance-and Almost everything I've found about this is in the abstract or inapplicable to multiple VMs in the same physical host. Examples: hypothetical use with HBAs or multiple graphics cards, http://blog.scottlowe.org/2009/12/02/what-is-sr-iov , http://lists.xen.org/archives/html/xen-users/2013-04/msg00126.html ; academic papers & theses, e.g. http://cs.uccs.edu/~gsc/pub/master/mkopps/doc/MKoppsReportRev3.pdf ; conference presentations, e.g. http://sear...

I've got my RAC cluster running pretty smoothly now (thanks again for all the help so far), but I only have single connections between the servers and the RAID array. The servers each have two Qlogic HBAs, and I'd like to find out if there's any reasonable way to implement multipathing. The platform is RHEL 3, and Red Hat's knowledgebase indicates that they strongly recommend against using the existing multipathing features in the Qlogic drivers (supposedly some bad failure scenarios ar...

...ould I look at to troubleshoot? The systems overall utilization is low. (All 3 systems are identical) RHEL 4 update 4 - 2.6.9-42.0.2.ELhugemem (32-bit) ocfs2-2.6.9-42.0.2.ELhugemem-1.2.3-1 ocfs2-tools-1.2.2-1 HP Proliant DL385 - 2 X 2.4 GHz AMD Opteron Processor 250 16GB RAM 2 X emulex LP10000 HBAs Powerpath 4.5.1 shared disks are from an EMC clariion CX500 Thanks, Matt -------------- next part -------------- An HTML attachment was scrubbed... URL: http://oss.oracle.com/pipermail/ocfs2-users/attachments/20070521/c868d69c/attachment.html

Hi, We know that the Command Line Interfaces (CLIs) for configuring and managing Emulex and QLogic Fibre Channel HBAs are included in the XenServer Host. Now suppose I want to configure and manage these HBAs out-of-band, say from some other virtualized or non-virtualized host. Is it possible ? If yes, then how? Thanks and regards Ashit _______________________________________________ Xen-users mailing list Xen-us...

...ze in advance as this is not really at CentOS specific issue, but I don't know where else to turn. We are configuring some Dell 1850s for a customer, and they have all been configured with a QLogic dual channel HBA. But no storage has been (or will be in the near future) attached to these HBAs. During the boot process (both for the kickstart and after the OS has been installed), there is a 2 minute delay (1 minute for each channel) while the qla2300.o module is loaded and the HBA probes for any attached storage. How can I configure the kernel to ignore the QLogic HBA? It's not...

Hi Everyone I am looking at setting up a File Server that uses ISCSI storage. It is the first time I have done this, so I am wanting to get peoples thoughts on whether for CentOS systems you should use Hardware based ISCSI HBA's? If so do I need to be careful about what HBA I use ? Currently I am looking at purchasing a Dell System using Broadcom ethernet cards/ ISCSI HBA. From

What initiators does libvirt support for the iSCSI pool? Will it work with qlogic's iSCSI HBAs for instance? --- Alexander Pierce, RHCE Solutions Architect -- Red Hat, Inc. apierce at redhat.com -- +1 (530) MR-LINUX (675-4689) Learn. Network. Experience Open Source. The 2010 Red Hat Summit and JBoss World Boston. June 22 - 25, 2010 http://www.theredhatsummit.com http://www.jbossworld.com

How can I verify if I am using SAN for my Linux Server? Also, how do I find WWNs of HBAs? TIA -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20070822/f0c3aa9b/attachment.html>