search for: pnfs

Hi, I am soliciting input from the ZFS engineers and/or ZFS users on an extension to "zfs list". Thanks in advance for your feedback. Quick Background: The pNFS project (http://opensolaris.org/os/project/nfsv41/) is adding a new DMU object set type which is used on the pNFS data server to store pNFS stripe DMU objects. A pNFS dataset gets created with the "zfs create" command and gets displayed using "zfs list". Specific Questio...

Greetings, Does anyone know whether I'll encounter problems serving out CIFS using Samba/CTDB where the servers are pNFS clients? Specifically I'm thinking that I'll have a number of RHEL 6.2 boxes connecting to netapp storage using pNFS. These boxes will then serve a variety of CIFS clients. JR

...is Rave computer has four early Tesla cards. It won't boot. Nor can I get it to boot with either of the other two kernels, and I'll be the one that worked was erased. *Once* it complained that it couldn't fsck the large filesystem (IIRC, it's XFS). The other four-five times, I get pNFS something Dependency, failed, systemd freezing execution. So far, I'm googling, and not finding anything like this. Has anyone run into this, or have any suggestions? If I could get back to the fsck failure, I could at least tell it to ignore /dev/sdb.... mark

...rly Tesla cards. > > It won't boot. Nor can I get it to boot with either of the other two > kernels, and I'll be the one that worked was erased. > > *Once* it complained that it couldn't fsck the large filesystem (IIRC, > it's XFS). The other four-five times, I get pNFS something Dependency, > failed, systemd freezing execution. > > So far, I'm googling, and not finding anything like this. Has anyone run > into this, or have any suggestions? > > If I could get back to the fsck failure, I could at least tell it to > ignore /dev/sdb.... >...

Hi list, I am wondering why do we need Ganesha user-land NFS server in order to get pNFS working? I understand Ganesha is necessary on the MDS, but standard kernel based NFS server should be sufficient on DS bricks (which should bring us additional performance), right? Could someone clarify? Thanks, Ondrej ----- The information contained in this e-mail and in any attachments is con...

Hi all: I have a linux kernel 2.6.32-pnfs and want to make it a paravirtualized domU of xen, can anyone tell me where to find the patches, and which is the most near kernel? Thank you. Mingyang Guo _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...nfig/use that are clearly for the newest ganesha and gluster combo. Can the gnfs support multiple transport methods? Granted, I have a conflicted need: the NFS is needed to resolve the mmap issue (and hopefully do some speed up that the users see) but the real high-speed need is possibly through pNFS clients to NFS-Ganesha but those connections will be over infinniband so only TCP and no RDMA. That drops my raw speed from 40Gbps to 10Gbps (connectx-2 gear). I can run gnfs on RDMA (40Gbps!) but no NFSv4.1 for pNFS AND a manual mess setting up HA for connections. The last connection fun is not al...

I'm looking at using GFS for parallel access to shared storage, most likely an iSCSI resource. It will most likely work just fine but I am curious if folks are using anything with fewer system requisites (e.g. installing and configuring the Cluster Suite). Specifically to our case, we have 50 nodes running in-house code (some in Java, some in C) which (among other things) receives JPGs,

I have heard rumors to the affect that there will be a sparc release of lustre incorporating zfs. If this is true does anyone know how I can get a copy, beta test, or sign up for the effort.

...;> >>> Have you thought about upgrading to v6? There are some enhancements in v6 which could be beneficial. >>> >>> Yet, it is indeed strange that so much traffic is generated with FUSE. >>> >>> Another aproach is to test with NFSGanesha which suports pNFS and can natively speak with Gluster, which cant bring you closer to the previous setup and also provide some extra performance. >>> >>> >>> Best Regards, >>> Strahil Nikolov >>> >>> >>> -------------- next part -------------- An HTML at...

...n the tech preview world nftables joins the testing group (I'll have articles up exploring this new firewalling method in the coming weeks) for networking. Whilst with storage overlayfs and btrfs remain in tech preview status - with cephfs joining them... as notable pieces. There's also new pNFS stuff. This is only a small snippet of things that jumped out relevant to me personally. As always make sure you read through the release notes in full. to be ready once CentOS starts producing the RPMs, and keep in mind this early in the lifecycle there are a fair few rebases and new features imp...

...m_notify: release some inflated memory via leak_balloon(); > leak_balloon: wait for balloon_lock to be released by fill_balloon. > > This patch breaks the lock into two fine-grained inflate_lock and > deflate_lock, and eliminates the unnecessary use of the shared data > (i.e. vb->pnfs, vb->num_pfns). This enables leak_balloon and > fill_balloon to run concurrently and solves the deadlock issue. > > @@ -162,20 +160,20 @@ static unsigned fill_balloon(struct virtio_balloon *vb, size_t num) > msleep(200); > break; > } > - set_page_pfns(vb, vb-&g...

...m_notify: release some inflated memory via leak_balloon(); > leak_balloon: wait for balloon_lock to be released by fill_balloon. > > This patch breaks the lock into two fine-grained inflate_lock and > deflate_lock, and eliminates the unnecessary use of the shared data > (i.e. vb->pnfs, vb->num_pfns). This enables leak_balloon and > fill_balloon to run concurrently and solves the deadlock issue. > > @@ -162,20 +160,20 @@ static unsigned fill_balloon(struct virtio_balloon *vb, size_t num) > msleep(200); > break; > } > - set_page_pfns(vb, vb-&g...

Hi all, i have a new setup where the htdocs directory for the webserver is located on a nfs share. Client has cachefilesd configured. Compared to the old setup (htdocs directory is on the local disk) the performance is not so gratifying. The disk is "faster" compared to the ethernet link but the cache should at least compensate this a bit. Do they exist more pitfalls for such

...ome inflated memory via leak_balloon(); >> leak_balloon: wait for balloon_lock to be released by fill_balloon. >> >> This patch breaks the lock into two fine-grained inflate_lock and >> deflate_lock, and eliminates the unnecessary use of the shared data >> (i.e. vb->pnfs, vb->num_pfns). This enables leak_balloon and >> fill_balloon to run concurrently and solves the deadlock issue. >> >> @@ -162,20 +160,20 @@ static unsigned fill_balloon(struct virtio_balloon *vb, size_t num) >> msleep(200); >> break; >> } >&g...

Hello all, I was thinking if such scenario could be possible: 1 - Export/import a ZFS filesystem in two solaris servers. 2 - Export that filesystem (NFS). 3 - Mount that filesystem on clients in two different mount points (just to authenticate in both servers/UDP). 4a - Use some kind of "man-in-the middle" to auto-balance the connections (the same IP on servers) or 4b - Use different

Hi, I have two Gluster servers A and B. They are mirrored. I mount A. What happens when server A goes down? I would like for my applications to seamlessly use data from the Gluster storage B. Thanks, Sergiy.

We recently had a strange NFS performance anomaly between a V880 running snv_124 and two NetApp filers. To investigate, a DTrace NFSv4 (and eventually NFSv3) client provider would been extremely helpful. Unfortunately, all I could find were a request for code review of a v3 client provider and another request for help developing a v4 provider. Nothing seems to have come from those initiatives,

Hi all, this series builds on my previous changes in Jens' for-4.11/rq-refactor branch that split out the BLOCK_PC fields from struct request into a new struct scsi_request, and makes support for struct scsi_request and the SCSI passthrough ioctls optional. It is now only enabled by drivers that need it. In addition I've made SCSI passthrough support in the virtio_blk driver an optional

Hi all, this series builds on my previous changes in Jens' for-4.11/rq-refactor branch that split out the BLOCK_PC fields from struct request into a new struct scsi_request, and makes support for struct scsi_request and the SCSI passthrough ioctls optional. It is now only enabled by drivers that need it. In addition I've made SCSI passthrough support in the virtio_blk driver an optional