search for: mpio

Displaying 17 results from an estimated 17 matches for "mpio".

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2009 Jan 09
7
Desperate question about MPXIO with ZFS-iSCSI
...P spaces. On my Vista64 machine, I also have two NICs connected in a similar fashion, with NIC #1 assigned with 192.168.1.103, and NIC #2 with 192.168.2.103. Now, I fiddled around with the MS iSCSI intiator seemingly endlessly, and I can''t get it to recognize my ZFS iSCSI volume as being MPIO enabled. It just shows up in the initiator panel simply as ''Disk''. Either I have not configured the ZFS end correctly to do MPXIO, or I''m not able to set the volume up as MPIO volume on the Vista64 end. I Googled endlessly to find some sort of a howto, but I came up virt...
2006 Jul 26
9
zfs questions from Sun customer
...... Let me know if this works for you. ************* follow-up question from customer ************ Yes, using the c#t#d# disks work, but anyone using fibre-channel storage on somethink like IBM Shark or EMC Clariion will want multiple paths to disk using either IBMsdd, EMCpower or Solaris native MPIO. Does ZFS work with any of these fibre channel multipathing drivers? Thanks for any assistance you can provide. -- David Curtis - TSE Sun Microsystems 303-272-6628 Enterprise Services david.curtis at sun.com OS / Installation Support Monday to Friday 9:00 AM to 6:00 PM Mountain
2012 Nov 17
2
iSCSI Question
...d 1,2,3,4,... and so on. That would essentially make both host1 and host2 identical iSCSI targets. So I could hook up 30 servers to each LUN on each host1 and host2 (assuming those block devices had a cluster aware filesystem on them). However, what I wan't to accomplish is true active/active MPIO utilizing the dm driver to combine LUN 1 from both host1 and host2 as a single /dev/dm-0 device in active/active mode. This would allow me to multipath across multiple fabrics, develop true high availability and increase my throughput significantly. Any idea of an iscsi tgtd that supports this? A...
2009 May 07
1
stale dm-multipath mappings
Greetings, I've hit this exact 'bug': https://bugzilla.redhat.com/show_bug.cgi?id=491311 I need to remove the mappings manually. I assume this is done via 'multipath -F' followed by a 'multipath -v2' ? Has anyone experienced doing this on a production system? We can do it during hours of low activity, but we would prefer to keep the databases on this host online at
2010 Sep 14
9
dedicated ZIL/L2ARC
We are looking into the possibility of adding a dedicated ZIL and/or L2ARC devices to our pool. We are looking into getting 4 ? 32GB Intel X25-E SSD drives. Would this be a good solution to slow write speeds? We are currently sharing out different slices of the pool to windows servers using comstar and fibrechannel. We are currently getting around 300MB/sec performance with 70-100% disk busy.
2010 Mar 19
1
Multipath and iSCSI Targets
Just started messing with multipath against an iSCSI target with 4 nics. What should one expect as behavior when paths start failing? My lab setup was copying some data on a mounted block device when I dropped 3 of 4 paths and the responsiveness of the server completely tanked for several minutes. Is that still expected? Thanks, jlc
2010 May 04
1
iostat on multipath disks
Hi Experts, How can I get info for my disks on multipath disks? I mean, usually I use 'iostat' for internal disks, however I need to know status of my multipathig devices, cause I'm monitoring stress test for my application.. Thank you for your responses. Regards, -------------- next part -------------- An HTML attachment was scrubbed... URL:
2003 Sep 27
1
Pontis and vorbis change.
...bout six months. Best regards Tobias Rodde Pontis Support <p><p>Joel schrieb: > Hi > > I see that the spec. for SP600 isn't mentioning Vorbis anymore... > ...does that mean you've changed plans about supporting it with a firmware > upgrade? > > /Joel -- mpio-peros GmbH (a Digitalway Korea Company) Distributor of Pontis Am Gleis 1 D-92521 Schwarzenfeld, Germany fax: ++49 9435 - 5407 40 tel: ++49 9435 - 5407 0 mail: support@peros.com http://www.pontis.de http://www.peros.com ----------end forwarded message---------- --- >8 ---- List archives: http:/...
2007 May 22
2
Vsftpd & Iscsi - fast enough
To extend space on our 64-bit centos FTP servers, we are considering setting them up to work with an existing PromiseRAID system via iscsi. -just curious if anyone here knows if iScsi is fast enough to serve up all the images? -might it be something where we get dedicated cards and put the iScsi traffic on its own Vlan? Just curious if this would hold up under alot of traffic, like weather
2012 Aug 15
1
iscsi storage, LACP or Multipathing | Migration or rebuild?
Hi, I do have one iscsi storage with 4 GBit nics of which currently only one is configured with an ip and which is in productive use by one cent os 6.3 server. Doing some research brought me to the idea to use some nic bonding or multipathing for that storage, but multipathing I did about four or five years ago only once :) Furthormore I can't find the ultimate answer (may be there is not
2007 Jul 09
0
Kernel panic with OCFS2 1.2.6 for EL5 (answer to multipath question)
Hello This is a bit off-topic, but here goes: Try installing the "device-mapper-multipath" package and follow the documentation below - residing at the powerlink.emc.com site: "Native Multipath Failover Based on DM-MPIO for v2.6.x Linux Kernel and EMC(r) Storage Arrays" When configured this works just as good as PowerPath. This works great on RHEL / CentOS 5 Daniel On 7/5/07, Luis Freitas <lfreitas34@yahoo.com> wrote: > > > I always get these annoying messages with EMC storages. > &g...
2009 Oct 27
4
EMC CX4 Clariion
Hi, We had received a new EMC storage (Clariion CX4) and the EMC analist has told us that CentOS aren't on their support list, but RHEL are :) Well anybody on the list has a CentOS host talking (iSCSI) with an EMC storage, preferably using the EMC Powerpath software, and can talk about you experience? Or I will need to buy some REHL licenses ? I'll put my hands on it only next
2007 Jan 20
4
Looking for player recommendations...
I'm looking for personal recommendations for low cost flash based players which support Vorbis (speex and flac support would be nice, but aren't mandatory). Solid support (no weird limits for low and high bitrates) is required. I'd be buying a fair quantity of them to give away as prizes and gifts. I'd rather purchase players which have native Vorbis support rather than buying
2009 Sep 17
1
multipath using defaults rather than multipath.conf contents for some devices (?) - why ?
hi all We have a rh linux server connected to two HP SAN controllers, one an HSV200 (on the way out), the other an HSV400 (on the way in). (Via a Qlogic HBA). /etc/multipath.conf contains this : device { vendor "(COMPAQ|HP)" product "HSV1[01]1|HSV2[01]0|HSV300|HSV4[05]0" getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
2011 May 30
13
JBOD recommendation for ZFS usage
Dear all Sorry if it''s kind of off-topic for the list but after talking to lots of vendors I''m running out of ideas... We are looking for JBOD systems which (1) hold 20+ 3.3" SATA drives (2) are rack mountable (3) have all the nive hot-swap stuff (4) allow 2 hosts to connect via SAS (4+ lines per host) and see all available drives as disks, no RAID volume. In a
2009 Mar 08
2
Tester wanted for multipath failover iSCSI target software
.... Please read README and INSTALL in the tarball for more detail. Tested Initiators: o Microsoft Windows Server 2008 (builtin) o Microsoft iSCSI Initiator 2.08 on WS2003 o Intel iSCSI Remote Boot 2.1.22 o Sun VirtualBOX 2.1.2 (builtin) o VMware ESXi 3.5 Update 3 (builtin) Key Features: o MCS/MPIO for failover (up to 255 concurrent sessions) o SPC-3 Persistent Reservation for cluster nodes o 64bit LBA for over 2TB o Header/Data digest by CRC32C o CHAP w/Mutual authentication o Multiple LUNs and ACLs for portals (experimental features) o iSCSI boot with Intel PRO/1000 Server Adapters o...
2009 Jun 02
5
Harware vs Kernel RAID (was Re: External SATA enclosures: SiI3124 and CentOS 5?)
-=- starting as new thread as it is off topic from controller thread -=- Ross Walker wrote: > > The real key is the controller though. Get one that can do hardware > RAID1/10, 5/50, 6/60, if it can do both SATA and SAS even better and > get a battery backed write-back cache, the bigger the better, 256MB > good, 512MB better, 1GB best. I've read a lot of different reports