similar to: DTrace provider proposal: fibre channel (fc) COMSTAR port provider probes

The iscsit_dtrace_draftv5.txt describes the Dtrace probes definition for the COMSTAR iSCSI target port provider. For all those interested in iSCSI, please take a look and send me your feedback/questions/suggestions etc by Thursday, April 20, 2009 thanks Priya -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: iscsit_dtrace_draftv5.txt URL:

I would like to request approval of the the DTrace proposal for the COMSTAR iSCSI target port provider. I have updated the specification of the iscsi provider at http://wikis.sun.com/display/DTrace/iscsi+Provider. Your feedback is appreciated. thanks Priya -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: iscsit_dtrace_draftv8.txt URL:

The earlier post with the Dtrace probes definition (sent on April 23) was only to solicit feedback from all prospective users of iSCSI DTrace probes. I will follow up shortly with an updated document requesting approval from the community. thanks Priya -------- Original Message -------- Subject: Dtrace provider for the COMSTAR iscsi Target Port Provider - Review Request Date: Thu, 23 Apr

I want to list/use the nfs probes but I get the error "dtrace: failed to match nfs*:::: No probe matches description". Is there a way to enable nfs provider probes? My system is running snv_112 (bfu''ed from the gate archive) # dtrace -lP nfs* ID PROVIDER MODULE FUNCTION NAME dtrace: failed to match nfs*:::: No probe matches

Hi, WARNING: Long post ahead I have an issue when starting multipathd. The kernel complains about "blk_cloned_rq_check_limits: over max segments limit". The server in question is configured for KVM hosting. It boots via iBFT to an iSCSI volume. Target is COMSTAR and underlying that is a ZFS volume (100GB). The server also has two infiniband cards providing four (4) more paths over SRP

Hello all, I am running an OpenSolaris server running 06/09. I installed comstar and enabled it. I have an ESXi 4.0 server connecting to Comstar via iscsi on its own switch. (There are two esxi servers), both of which do this regardless of whether one is on or off. The error I see is on esxi "Lost connectivity to storage device naa.600144f030bc450000004a9806980003. Path vmhba33:C0:T0:L0 is

Hi, I have a zfs volume that''s exported via iscsi for my wife''s Mac to use for Time Machine. I''ve just built a new machine to house my "big" pool, and installed build 129 on it. I''d like to start using COMSTAR for exporting the iscsi targets, rather than the older iscsi infrastructure. I''ve seen quite a few tutorials on how to use

I apologize if this has been covered before. I have not seen a blow-by-blow installation guide for Ubuntu onto an iSCSI target. The install guides I have seen assume that you can make a target visible to all, which is a problem if you want multiple iSCSI installations on the same COMSTAR target. During install Ubuntu generates three random initiators and you have to deal with them to get things

Hi all, Using "old" way of sharing volumes over iscsi in zfs (zfs set shareiscsi=on) i can see i/o stats per iscsi volume running a command iscsitadm show stats -I 1 volume. However i couldn''t find something similar in new framework,comstar. Probably i''m missing something, so if anyone has some tips please share it :) Thanks in advance, Bruno -------------- next part

Hi, Nexenta CP and NexentaStor has integrated COMSTAR with ZFS, which provides 2-3x performance gain over userland SCSI target daemon. I;ve blogged in more detail at http://www.gulecha.org/2009/03/03/nexenta-iscsi-with-comstarzfs-integration/ Cheers, Anil http://www.gulecha.org

Hi, I am posting my question to both storage-discuss and zfs-discuss as I am not quite sure what is causing the messages I am receiving. I have recently migrated my zfs volume from b104 to b134 and upgraded it from zfs version 14 to 22. It consist of two zvol''s ''vol01/zvol01'' and ''vol01/zvol02''. During zpool import I am getting a non-zero exit code,

I have a Dell PowerEdge 2950 and am looking to add more storage. I know a lot of factors can go into the type of answer given, but for present and future technology planning, should I look for a rack of SATA, SCSI, or fibre channel drives? Maybe I'm dating myself with fibre channel, and possibly SCSI? I may be looking to add a few TB now, and possibly more later. What are people

For quite some time I?ve been using FreeNAS to provide services as a NAS over ethernet and SAN over Fibre Channel to CentOS 7 servers each using their own export, not sharing the same one. It?s time for me to replace my hardware and I have a new R720XD that I?d like to use in the same capacity but configure CentOS 7 as a Fibre Channel target rather than use FreeNAS any further. I?m doing

Hello, I was doing performance testing, validating zvol performance in particularly, and found that zvol write performance to be slow ~35-44MB/s at 1MB blocksize writes. I then tested the underlying zfs file system with the same test and got 121MB/s. Is there any way to fix this? I really would like to have compatible performance between the zfs filesystem and the zfs zvols. # first test is a

The ZFS crew might be better to answer this question. (CC''d here) --jc William Yang wrote: > I am having issues creating a zpool using entire disks with a fibre > channel array. The array is a Dell PowerVault 660F. > When I run "zpool create bottlecap c6t21800080E512C872d14 > c6t21800080E512C872d15", I get the following error: > invalid vdev

In principle, will Xen handle virtualization of Fibre Channel HBA''s? Say I have a physical server with a single FC HBA installed. If I create two domains, will XEN virtualize the HBA so that both of the domains can talk to the FC fabric? -M. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

I had this exact same problem with 2.0.7. I had done a little investigation and found scheduled_work gets called to schedule the shutdown in the user domain kernel, but the shutdown work that gets scheduled never actually gets called. I''m glad someone else is seeing this same problem now :-) Like you, it worked a number of times in a row, then would fail, and it didn''t seem to

Hello I''m a newbie here so please don''t laugh at me... I plan to setup several (4) physical servers to run xen virtualized OS-es (in example web servers). What I need is that those virtualized OS-es must have simultaneous access to disk storage physically created on FC array. I read that this could be done by OCFS or Lustre file system but my question is: how virtualized

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.

Hi, I''m looking to build a virtualized web hosting server environment accessing files on a hybrid storage SAN. I was looking at using the Sun X-Fire x4540 with the following configuration: - 6 RAID-Z vdevs with one hot spare each (all 500GB 7200RPM SATA drives) - 2 Intel X-25 32GB SSD''s as a mirrored ZIL - 4 Intel X-25 64GB SSD''s as the L2ARC. -