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performance degradation backing up small files by
alan
Has anyone experienced performance degradation when backing up large
volumes of files from a NAS array? I am researching complaints that
backing up large volumes of small files (128k)results in a noticeable
performance drop. One suggested solution was to segregate small files
and back them up over...
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2 |
777 |
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Software reads of a AAA-UDMA raid array by
Nicolas M.
I have...had an Adaptec AAA-UDMA radi5 ide adaptor.
I had HDx dying in the past, dying along with all data it contained... So,
eventually I bought an affordable raid 5 card. I though I could put
important data on a 3 20gig HD raid 5 array since any one drive could die It
would still be possible to...
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2 |
276 |
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persistent binding by
[email protected]
Hi,
I am a sysadmin that is new to the area of storage and SAN. Can anyone
direct me to a good article about persistent binding - what it is and
how to do it? Mainly for solaris (jni/qlogic) but other OS's also.
Also is persistent binding valid only for disks or can it be used for
tape...
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2 |
291 |
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FREE sample of StorageNewsletter by
Maleval
STORAGENEWSLETTER is a 17-year old monthly periodical in English
entirely devoted to the worldwide hardware and software storage
industry (magnetic and optical disk and tape, DAS, NAS, SAN, iSCSI,
virtualization, storage management software, etc).
FOR A FREE SAMPLE:...
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0 |
346 |
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Networker + direct SAN backup by
Abadonna
Hi all!
This is my first post to that group, so I would like to say hallo to
everybody.
The situation is like this:
There a EMC, Server (with Networker 7.1) and a PowerVault 132T. They are
connected to Fibre Switch. Is it possible to create client wchich would
provide direct backup EMC -...
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3 |
163 |
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san or ethernet? by
Mike
One thing that has been recently realized is the backup
is saturating the primary network (suprise!). I've been
tasked with finding a solution. I've been researching
lan-free and server-free backup solutions using a
SAN. I realized today that even a SAN will eventuall have
bandwidth problems and as...
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4 |
170 |
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Can I upgrade memory on an F720? by
Thanatos
Hi Mark,
In NetApp's early days they used to allow customers to upgrade RAM - in fact
their SE's would sometimes recommend RAM or CPU upgrades on the early 486
based (pre Alpha and PIII) F2xx and F3xx series filers, based on workload
and capacity considerations.
From the F540 or F640 on (can't...
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2 |
250 |
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TSM storage used? by
Mike
How can I query TSM to find how much storage is currently in use
now (tape) for all the files (corporate-wide) that are backed
up (under TSM's control)? I was just asked a question do we
want to get rid of the tape robot and move to JBOD instead.
Thoughts on doing that kind of move?
Mike
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8 |
754 |
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Dell PV220S poor performance by
Konik
I have PV-220S connected with Perc 3/DC to the PE 6450 server with 1GB RAM,
1xP3 700MHz CPU, running Win2k Adv. Server. PV is filled with 14 10krpm 73GB
harddisks and on the backplane there are three 18GB hdds. On both channels
there are RAID 5 logical disks. Performance of both logical disks are...
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April 23rd 04 05:21 AM
by kalev-
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5 |
406 |
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iSCSI application characteristics by
Nishit S. Shah
Hello,
I needed some help in finding out what are the some of the
characteristics of storage protocols like iSCSI. Questions like:
How many sessions are usually supported by an iSCSI initiator/target?
How many connections per sessions are typically held?
What is the state maintained per...
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0 |
322 |
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PV 650F upgrade by
Konik
I have PV 650F FC storage with 10x 18GB hdd. I set there RAID5, so there are
about 120GB on it - this is not enough for our file server. Is a good idea
to replace disks in this matrix with 73GB hdds (it's not connected to our
production server) or better buy new HVD SCSI matrix with enough...
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April 21st 04 08:31 PM
by Konik
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0 |
196 |
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Bad sectors on new IDE drive by
Andre Majorel
I have a brand new IDE drive (250GB Maxtor) that has a sector
that consistently triggers a CRC error on read. I find this
puzzling, as I thought IDE disks were supposed to automatically
remap bad sectors. And always have in my past experience.
However, this is not the first time that I come across...
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6 |
290 |
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Opinions on cheap FC RAID Heads by
Jochen Kaiser
Dear all,
I'm currently looking for a (cheap) alternative to replace our current
SAN. During my search I've found multiple (mostly 1U) raid heads and
would like to hear your opinion on those product, errr I mean solutions.
I'm especially interested in the products from...
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0 |
152 |
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BENW v 9.0 problem by
Tony Cummins
I'm running BENW v9.0 Build 4175 on Netware 5.1 SP 6.
When browsing the Media from the Server Admin console and selecting Volume
view, when I browse down the directory structure I come across the following
message:
"There are no selectable items at this level"
This looks to me as if the...
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0 |
131 |
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EMC Automated Resource Manager by
Arturo B Wniaubauer
Hello everyone,
Has anyone had any luck finding an audit trail for the EMC Automated
Resource Manager product? We'd like to see what the agents are doing,
and go back to these audits when there are problems to see who should
get fired :)
Just a joke. We whip, we don't fire. :)
Ideally it is a...
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0 |
125 |
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Some general questions about backup systems, mainly speed of restore by
Rob Nicholson
We have an LTO 100GB/200GB drive backing up a variety of data spread across
~5 servers. We also backup a few local directories on development PCs "just
in case". We're currently running an ancient copy of ArcServeIT 6.61 on NT4
for which the support contract ran out ages ago :-) The ArcServe host...
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6 |
1,018 |
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The State of CAS by
Bill Todd
"Malcolm Weir" wrote in message
...
....
Symmetrix didn't, but Harmonix (EMC's successful AS/400 offering,
perpetually overshadowed by Symm) did.
My bad, then. I was involved with the early stages of the design of the
precursor...
( 1 2)
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16 |
1,344 |
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BrightStor ARCServe 9 Linux Agent by
Greg Krzeszkowski
Hi,
trying to get the arcserve 9 linux agent to correctly communicate with
the Windows version of arcserve. Did the install as per instructions
(untar, run ./install, uagent start), and then hopped onto the windows
box that manages backups.
I was able to do an auto discovery for "UNIX systems",...
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0 |
191 |
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Burning vs Drag & Drop by
Karl Engel
Does burning data to DVD+RW make it any more robust than dragging it
to a formatted DVD+RW disk? Is there any higher degree of error
checking or general reliability? (I'm assuming there is from CD-RW
experience)
I'm using these disks as an interim bckup for some projects that are
in a state of...
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1 |
296 |
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RAID 0+1 vs. RAID 1+0: explanations appreciated by
Neil Zanella
Hello,
I have consulted several sources but could not find an adequate
explanation of
how RAID 0+1 differs from RAID 1+0. Some sources even seem
contradictory.
Hence I have posted some diagrams which are for one-sided
one-plattered
one-cylinder disks. The diagram includes block and disk...
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April 16th 04 07:21 PM
by jlsue
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5 |
546 |