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54.6 MB/s iSCSI GbEthernet between Linux (RH5) and FAS2020

community@netapp.com — Wed, 11 Nov 2009 13:02:23 GMT

average 54.6 MB/s is normal speed for GigaEthernet ? ( I have just FAS2020 -> SwitchEnterasysC3(HighSpeedGigabitEthernet) -> Linux(broadcom GigabitEthernet) )

When I tried to use dd to force write data in FAS2020 the process is used 100%, this is one bottleneck problem or this is normal ?

ISCSI

Like above

[root@oraclesrv mnt]# dd if=/dev/zero of=/dev/sda bs=5M count=1000 conv=notrunc
1000+0 records in
1000+0 records out
5242880000 bytes (5.2 GB) copied, 95.9385 seconds, 54.6 MB/s

filer2> sysstat -i -s 2
CPU    NFS   CIFS iSCSI      Net kB/s     Disk kB/s     iSCSI kB/s    Cache
                               in   out     read write      in   out      age
4%      8      0      0     227    24       22      0       0     0      10
1%     19      0      0       5    82      576     16       0     0      10
4%      0      0      0       2     4       12     12       0     0      10
74%    316      0     82   43072 1042     1130 39734   39213     0       7
94%      0      0    117   61546 1371      666 74028   58655     0       5
99%    124      0    104   56693 1362      728 65542   53117     0       5
99%      0      0    112   62428 1400      744 74212   59507     0       5
99%      0      0    112   64355 1435      768 79680   61213     0       5
96%      9      0    112   62747 1419     1016 71034   59441     0       5
99%      0      0    110   58443 1324      414 64812   55640     0       5
99%      0      0    122   64568 1439     1002 77548   61506     0       5
95%     10      0     95   55751 1275     1386 67932   52691     0       5
100%      0      0    104   52392 1176      782 59652   49807     0       5

Why am I getting a Bad Disk Label Error?

community@netapp.com — Tue, 17 Nov 2009 15:41:33 GMT

I recently replaced a failed disk with another spare that I had but when it was inserted this is what I get: "disk has no valid labels. It will be taken out of service."

"1 disks have downrev firmware. They will be updated automaticaly using...."

This filer is an F820. The disk is a 68.0GB 520B/sect.

What can I do to correct this?

Thanks,

Paul Yates

Catapult Exploration LLC

Operations Manager Permissions

community@netapp.com — Fri, 20 Nov 2009 23:49:42 GMT

I am seeing Access violations for OM Database Backups

I was however able to set schedule and take archive backups with dfm backup cli.

Also the dfm user cannot login with login ,but works with setup->Administrative Users link ,

Could this be any Domain Authentication/Security Issue ?

Thanks

Aggregate space

kevin.dann@majentasolutions.com — Fri, 20 Nov 2009 10:21:31 GMT

Is there a best practice for the amount of free space to be left within an aggregate?

Regards

Kevin

FlexClone and Reporting Database

community@netapp.com — Tue, 12 May 2009 10:28:53 GMT

Guys

Fairly new to NetApp and have a question

We have a reporting database for a production system where the database is currently built from a backup of the production database via unix scripts

Id like to replace that using ONTAP tools like FlexClone. However I have a few questions

Can a specific clone be rebuilt at a scheduled time? i.e. rebuild the clone from the production database every 6 hours. Clone keeps same name and no database config changes are required
Whats the impact on the production database during cloning? (Cpu etc)
During the cloning do we need to take the database down or can this happen without outage?
Am I thinking on the right lines here or would we better with something like SnapMirror to keep the 2 database in synch. Thought clones would be better as its a read only database but if we have to take the instance off line via some sort og syncrhonised scripts im wondering if its worth it

Any best practice would be nice!

Tech OnTap Newsletter: Hyper-V Best Practices. November 2009

community@netapp.com — Sat, 21 Nov 2009 00:47:08 GMT

Top 5 Hyper-V best practices, how SAS is taking disk storage to
the next level, and a technical report on larger-sized aggregates.

_____________________________________

TECH ONTAP NEWSLETTER: HYPER-V BEST PRACTICES

HIGHLIGHTS | November 2009

_____________________________________

TOP 5 HYPER-V BEST PRACTICES

Chaffie McKenna, Microsoft Reference Architect

The second release of Microsoft(R) Hyper-V(TM) is shipping with many new features and capabilities. NetApp best practices cover important new features as well as lessons learned from numerous deployments.

Learn how to configure networks, set appropriate iGroups and LUN types, avoid alignment problems, and configure CSVs. > More

_____________________________________

TIPS FROM THE TRENCHES

Q&A: Taking Disk Storage to the Next Level with SAS
Doug Coatney, Storage Software Engineer
Chris Lueth, Technical Marketing Engineer

NetApp recently released its first SAS-based disk shelf with Storage Bridge Bay and out-of-band management. Find out why SAS disk technology is replacing FC. > More

_____________________________________

ENGINEERING TALK

An Introduction to Larger-Sized AggregatesUday Boppana, Technical Marketing Engineer

Data ONTAP(R) 8.0 7-Mode supports bigger aggregates, called 64-bit aggregates. Read this technical report to learn about creating and managing them. > More

_____________________________________

LOGGING WITH DAVE

Cloud/Grid/UtilityDave Hitz, NetApp Founder and EVP

At first, cloud computing was about how to not build a data center, but it quickly morphed into an architectural description of how you should build a data center. > Dave's Blog

_____________________________________

COMMUNITY SPOTLIGHT

> Connect With Your Fellow Readers

See what other Tech OnTap readers are talking about. Join our group in the NetApp Community and share your ideas and storage expertise.

> Multimode VIF Survival Guide

Our resident network expert talks all about deploying high-performance Ethernet storage infrastructures, such as multimode VIFs.

_____________________________________

> TECH ONTAP ARCHIVES

______________________________________

Release date for SMO 3.0.3?

community@netapp.com — Thu, 24 Sep 2009 02:10:26 GMT

Is there a release date for SMO 3.0.3? List of new features?

SMO cloning of Oracle database on an alternate host ?

community@netapp.com — Wed, 03 Jun 2009 20:53:56 GMT

i would like to have feedback from someone who performed SMO cloning for Oracle database (9i or 10g) on NFS protocol:

here is the use case:

A) install SMO on two AIX hosts : AIX 1 and AIX 2
B) create a clone with SMO 2.2 from a database that is running on AIX1 and then request SMO to mount the clone (all NFS mounts from qtrees) on AIX2
C) start the cloned database on AIX2

in this case, how can we start automtically the Oracle database on AIX 2 ? Does someone perform scripting for that case.

according to information i have , SMO will only mount NFS qtree on AIX2 from the clone but will not start and recover the Oracle Database in the clone

besides, SMO will not modifiy the TNSNAMES file and maybe other ORacle files.

any help is welcome.

SnapCreator DB2 DR Demo (Insight 2009).wmv

community@netapp.com — Fri, 20 Nov 2009 20:25:14 GMT

SMO - Mirroring data subsets

community@netapp.com — Thu, 09 Jul 2009 09:03:21 GMT

Is there any way using SMO to run some sort of SQL script to limot the data mirrored to a date range?

Or another fancy way of doing this that avoids old school Oracle scripting?