Displaying 20 results from an estimated 1000 matches similar to: "need some explanation"
2007 Apr 28
4
What tags are supported on a zvol?
I assume that a zvol has a vtoc. What tags are supported?
Thanks,
Brian
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2007 Jan 10
2
using veritas dmp with ZFS (but not vxvm)
We have some HDS storage that isn''t supported by mpxio, so we have to use veritas dmp to get multipathing.
Whats the recommended way to use DMP storage with ZFS. I want to use DMP but get at the multipathed virtual luns at as low a level as possible to avoid using vxvm as much as possible.
I figure theres no point in having overhead from 2 volume manages if we can avoid it.
Has anyone
2007 Feb 06
4
The ZFS MOS and how DNODES are stored
ZFS documentation lists snapshot limits on any single file system in a pool at 2**48 snaps, and that seems to logically imply that a snap on a file system does not require an update to the pool?s currently active uberblock. That is to say, that if we take a snapshot of a file system in a pool, and then make any changes to that file system, the copy on write behavior induced by the changes will
2008 Mar 12
3
Mixing RAIDZ and RAIDZ2 zvols in the same zpool
I have a customer who has implemented the following layout: As you can
see, he has mostly raidz zvols but has one raidz2 in the same zpool.
What are the implications here? Is this a bad thing to do? Please
elaborate.
Thanks,
Scott Gaspard
Scott.J.Gaspard at Sun.COM
> NAME STATE READ WRITE CKSUM
>
> chipool1 ONLINE 0 0 0
>
>
2007 Jun 17
18
6 disk raidz2 or 3 stripe 2 way mirror
I''m playing around with ZFS and want to figure out the best use of my 6x
300GB SATA drives. The purpose of the drives is to store all of my data at
home (video, photos, music, etc). I''m debating between:
6x 300GB disks in a single raidz2 pool
--or--
2x (3x 300GB disks in a pool) mirrored
I''ve read up a lot on ZFS, but I can''t really figure out which is
2007 Jul 13
1
do we support zonepath on UFS formated ZFS volume
Hi, ZFS experts,
From ZFS release notes, " Solaris 10 6/06 and Solaris 10 11/06: Do Not
Place the Root File
Systemof a Non-Global Zone on ZFS. The zonepath of a non-global zone
should not reside on
ZFS for this release. This action might result in patching problems and
possibly prevent the system
from being upgraded to a later Solaris 10 update release."
So my question is, do we
2006 Dec 14
2
ZFS questions
I will have a file system in a SAN using ZFS. Can someone answer my
questions?
1. Can I create ZFS volumes on a ZFS file system from one server,
attach the file system read-write to a different server (to load data),
then detach the file system from that server and attach the file system
read-only to multiple other servers?
2. Can I expand on the fly a ZFS volume within a file
2006 Aug 11
3
Proposal expand raidz
Greetings
Have used zfs raidz for while and question rised is it possible to expand raidz with additional disks.
Got answer pool yes but raidz "group" no.
So very high level idea for you , maybe already know.
And i''m not detail level expert of zfs so here might be "trivial" things for you.
So could add operation enhanced so that it allow to add additional
2006 Oct 10
3
Solaris 10 / ZFS file system major/minor number
Hi,
In migrating from **VM to ZFS am I going to have an issue with Major/Minor numbers with NFS mounts? Take the following scenario.
1. NFS clients are connected to an active NFS server that has SAN shared storage between the active and standby nodes in a cluster.
2. The NFS clients are using the major/minor numbers on the active node in the cluster to communicate to the NFS active server.
3.
2006 Nov 16
5
SVM - UFS Upgrade
Is it possible to convert/upgrade a file system that is currently under the control of Solaris Volume Manager to ZFS?
Thanks
This message posted from opensolaris.org
2007 Apr 27
2
Scrubbing a zpool built on LUNs
I''m building a system with two Apple RAIDs attached. I have hardware RAID5 configured so no RAIDZ or RAIDZ2, just a basic zpool pointing at the four LUNs representing the four RAID controllers. For on-going maintenance, will a zpool scrub be of any benefit? From what I''ve read with this layer of abstration ZFS is only maintaining the metadata and not the actual data on the
2007 Aug 16
5
import zfs dataset online in a zone
Hello,
is there a way to add a zfs dataset to a zone online?
The only info I found is to configure the dataset in the zone via zonecfg then reboot the zone.
I would like to be able to add new separated dataset for each new db''s I add in the zone and of course if I need to reboot the zone every time I have to add/remove a db, my users will not be very happy... The only option I found
2007 Jun 13
5
drive displayed multiple times
So I just imported an old zpool onto this new system. The problem would be one drive (c4d0) is showing up twice. First it''s displayed as ONLINE, then it''s displayed as "UNAVAIL". This is obviously causing a problem as the zpool now thinks it''s in a degraded state, even though all drives are there, and all are online.
This pool should have 7 drives total,
2007 Apr 10
15
Poor man''s backup by attaching/detaching mirror drives on a _striped_ pool?
Hi,
one quick&dirty way of backing up a pool that is a mirror of two devices is to
zpool attach a third one, wait for the resilvering to finish, then zpool detach
it again.
The third device then can be used as a poor man''s simple backup.
Has anybody tried it yet with a striped mirror? What if the pool is
composed out of two mirrors? Can I attach devices to both mirrors, let them
2011 Oct 21
5
How to remove a Trash folder from a mounted ntfs partition
CentOS-5.7 using fuse-ntfs-3g
I have a HDD from a laptop that is being returned for
repair replacement. I wish to remove certain files before
sending the laptop back with the HDD.
I have mouunted the HDD on my desktop as an ntfs
filesystem using an external SATA / USB adapter. As root
I then used the gnome desktop to move the desired files to
trash. Now I wish to delete the contents of the
2007 Sep 25
23
device alias
Hi. I''d like to request a feature be added to zfs. Currently, on
SAN attached disk, zpool shows up with a big WWN for the disk. If
ZFS (or the zpool command, in particular) had a text field for
arbitrary information, it would be possible to add something that
would indicate what LUN on what array the disk in question might be.
This would make troubleshooting and general
2011 Mar 11
4
Any existing functions for reading and extracting data from path names?
Hi helpeRs,
I have inherited a set of data files that use the file system as a
sort of poor man's database, i.e., the data files are nested in
directories that indicate which city they come from. For example:
dir.create("deleteme")
for(i in paste("deleteme", c("New York", "Los Angeles"), sep="/")) {
dir.create(i)
for(j in
2008 Mar 20
5
Snapshots silently eating user quota
All,
I assume this issue is pretty old given the time ZFS has been around. I have
tried searching the list but could not get understand the structure of how
ZFS actually takes snapshot space into account.
I have a user walter on whom I try to do the following ZFS operations
bash-3.00# zfs get quota store/catB/home/walter
NAME PROPERTY VALUE SOURCE
2010 Mar 19
3
zpool I/O error
Hi all,
I''m trying to delete a zpool and when I do, I get this error:
# zpool destroy oradata_fs1
cannot open ''oradata_fs1'': I/O error
#
The pools I have on this box look like this:
#zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
oradata_fs1 532G 119K 532G 0% DEGRADED -
rpool 136G 28.6G 107G 21% ONLINE -
#
Why
2020 Nov 17
2
Best practice preparing for disk restoring system
Maybe "rear" is an appropriate solution for you?
https://relax-and-recover.org/
On 17/11/2020 18:23, Chris Schanzle via CentOS wrote:
> I would include LVM and mdadm info as well, since I use those features.? I encourage you to look at what long-lived tools, such as clonezilla, write into their archive directories.? It's impressive.
>
> If you zero out all free space on