Displaying 20 results from an estimated 2000 matches similar to: "Failed zfs send "invalid backup stream"............."
2010 Jul 09
4
resilver of older root pool disk
This is a hypothetical question that could actually happen:
Suppose a root pool is a mirror of c0t0d0s0 and c0t1d0s0
and for some reason c0t0d0s0 goes off line, but comes back
on line after a shutdown. The primary boot disk would then
be c0t0d0s0 which would have much older data than c0t1d0s0.
Under normal circumstances ZFS would know that c0t0d0s0
needs to be resilvered. But in this case
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 Aug 21
8
ZFS with Equallogic storage
I''m planning on setting up an NFS server for our ESXi hosts and plan on using a virtualized Solaris or Nexenta host to serve ZFS over NFS.
The storage I have available is provided by Equallogic boxes over 10Gbe iSCSI.
I am trying to figure out the best way to provide both performance and resiliency given the Equallogic provides the redundancy.
Since I am hoping to provide a 2TB
2010 Sep 29
10
Resliver making the system unresponsive
This must be resliver day :)
I just had a drive failure. The hot spare kicked in, and access to the pool over NFS was effectively zero for about 45 minutes. Currently the pool is still reslivering, but for some reason I can access the file system now.
Resliver speed has been beaten to death I know, but is there a way to avoid this? For example, is more enterprisy hardware less susceptible to
2010 Sep 09
37
resilver = defrag?
A) Resilver = Defrag. True/false?
B) If I buy larger drives and resilver, does defrag happen?
C) Does zfs send zfs receive mean it will defrag?
--
This message posted from opensolaris.org
2010 Oct 16
4
resilver question
Hi all
I''m seeing some rather bad resilver times for a pool of WD Green drives (I know, bad drives, but leave that). Does resilver go through the whole pool or just the VDEV in question?
--
Vennlige hilsener / Best regards
roy
--
Roy Sigurd Karlsbakk
(+47) 97542685
roy at karlsbakk.net
http://blogg.karlsbakk.net/
--
I all pedagogikk er det essensielt at pensum presenteres
2010 Apr 02
6
L2ARC & Workingset Size
Hi all
I ran a workload that reads & writes within 10 files each file is 256M, ie,
(10 * 256M = 2.5GB total Dataset Size).
I have set the ARC max size to 1 GB on etc/system file
In the worse case, let us assume that the whole dataset is hot, meaning my
workingset size= 2.5GB
My SSD flash size = 8GB and being used for L2ARC
No slog is used in the pool
My File system record size = 8K ,
2011 Mar 04
13
cannot replace c10t0d0 with c10t0d0: device is too small
In 2007 I bought 6 WD1600JS 160GB sata disks and used 4 to create a raidz storage pool and then shelved the other two for spares. One of the disks failed last night so I shut down the server and replaced it with a spare. When I tried to zpool replace the disk I get:
zpool replace tank c10t0d0
cannot replace c10t0d0 with c10t0d0: device is too small
The 4 original disk partition tables look like
2010 Oct 20
5
Myth? 21 disk raidz3: "Don''t put more than ___ disks in a vdev"
In a discussion a few weeks back, it was mentioned that the Best Practices
Guide says something like "Don''t put more than ___ disks into a single
vdev." At first, I challenged this idea, because I see no reason why a
21-disk raidz3 would be bad. It seems like a good thing.
I was operating on assumption that resilver time was limited by sustainable
throughput of disks, which
2011 Apr 07
40
X4540 no next-gen product?
While I understand everything at Oracle is "top secret" these days.
Does anyone have any insight into a next-gen X4500 / X4540? Does some
other Oracle / Sun partner make a comparable system that is fully
supported by Oracle / Sun?
http://www.oracle.com/us/products/servers-storage/servers/previous-products/index.html
What do X4500 / X4540 owners use if they''d like more
2010 Oct 19
8
Balancing LVOL fill?
Hi all
I have this server with some 50TB disk space. It originally had 30TB on WD Greens, was filled quite full, and another storage chassis was added. Now, space problem gone, fine, but what about speed? Three of the VDEVs are quite full, as indicated below. VDEV #3 (the one with the spare active) just spent some 72 hours resilvering a 2TB drive. Now, those green drives suck quite hard, but not
2010 Aug 24
7
SCSI write retry errors on ZIL SSD drives...
I posted a thread on this once long ago[1] -- but we''re still fighting
with this problem and I wanted to throw it out here again.
All of our hardware is from Silicon Mechanics (SuperMicro chassis and
motherboards).
Up until now, all of the hardware has had a single 24-disk expander /
backplane -- but we recently got one of the new SC847-based models with
24 disks up front and 12 in the
2009 Mar 29
9
About snapshots or versioned backups
This may be a bit poorly thought through but in this case I don''t
really know enough to really think it through.
My back ground is linux... there I used a tool called rsnapshot which
used rsync and some hardlink magic to create versioned backups. But
take very little space.
By versioned I don''t mean as in version control but just copies of
files as they change.
It worked by
2010 Oct 08
74
Performance issues with iSCSI under Linux
Hi!We''re trying to pinpoint our performance issues and we could use all the help to community can provide. We''re running the latest version of Nexenta on a pretty powerful machine (4x Xeon 7550, 256GB RAM, 12x 100GB Samsung SSDs for the cache, 50GB Samsung SSD for the ZIL, 10GbE on a dedicated switch, 11x pairs of 15K HDDs for the pool). We''re connecting a single Linux
2010 Oct 17
10
RaidzN blocksize ... or blocksize in general ... and resilver
The default blocksize is 128K. If you are using mirrors, then each block on
disk will be 128K whenever possible. But if you''re using raidzN with a
capacity of M disks (M disks useful capacity + N disks redundancy) then the
block size on each individual disk will be 128K / M. Right? This is one of
the reasons the raidzN resilver code is inefficient. Since you end up
waiting for the
2009 Mar 28
2
Have an idea about ZFS improvements - step to the user. Is it actual?
Hi, I have an idea about improvements of ZFS from the one side and improvements for of the GUI interface from the other side. Let me describe my idea.
>From the one side we have an ZFS on-th-fly snapshots, and starting from OpenSolaris 2008.11 we have TimeSlider user feature based on ZFS snaphots. So, we made a big step to the user.
But from the other side we still have in GUI interface
2010 Nov 28
6
has_one accepts_nested_attributes_for fields_for NOT WORKING HELP
MODEL
class User < ActiveRecord::Base
has_one :address, :dependent => :destroy
accepts_nested_attributes_for :address
end
CONTROL
def new
@user = User.new
@user.build_address # Adicionei
...
VIEW partial _form
....
<% f.fields_for :address do |b| %> # Adicionei
<%= b.text_field :city_manual %> # Adicionei
<% end %>
2003 May 10
4
Wireless IP phone for *PBX
Dear Guys,
One of my customers ask me for a Wireless IP PBX, well the Asterisk fits IP
PBX, But what about Wireless, ans also portable, a very special cutomer :)
1.-one possible solution is a PDA with one of those SIp softphones but VERY
EXPENSIVE for the PDA
2.- a fxs channel bank and lots of Panasonic like wireless phone but the
question is
1.- can my customer use all the features
2010 Jul 02
14
NexentaStor 3.0.3 vs OpenSolaris - Patches more up to date?
I see in NexentaStor''s announcement of Community Edition 3.0.3 they mention some backported patches in this release.
Aside from their management features / UI what is the core OS difference if we move to Nexenta from OpenSolaris b134?
These DeDup bugs are my main frustration - if a staff member does a rm * in a directory with dedup you can take down the whole storage server - all with
2008 Jan 01
2
Non-Linear Quantile Regression
Please,
I have a problem with nonlinear quantile regression.
My data shows a large variability and the quantile regression seemed perfect
to relate two given variables. I got to run the linear quantile regression
analysis and to build the graph in the R (with quantreg package). However, the
up part of my data dispersion seems a positive exponential curve, while the
down part seems a negative