NetApp Technology Network : Thread List - File Services

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

Performance

community@netapp.com — Thu, 19 Nov 2009 16:22:03 GMT

Hi all,

environment:

N series 3300 single controller (FAS2020), 1 aggregate RAID-DP with 8 x 750GB SATA disk 7200rpm, 1 Gbps ethernet link, 1 small root volume and 1 big data volume, CIFS only, sample windows 9:30-12:30 "full business time"

cifs_ops              avg: 1633   max: 5265
cifs_read_ops      avg: 489    max: 2216
cifs_write_ops     avg: 286    max: 1325
cifs_latency        avg: 0,41   max: 14,4
processor_busy avg: 16,5   max: 49

is this a "stressed" nas?

what other parameters can I monitor for better understand the utilization of the appliance?

TKS

Federico Sardonico

setup Quota for CIFS share

community@netapp.com — Wed, 04 Nov 2009 09:15:30 GMT

Hi Guys

I am using FAS30xx with ontap 6.2.x version. I wanted to setup quota for my CIFS shares, could you please shed some light on options i have?

thanks

Removing the multipath on the filer.

community@netapp.com — Fri, 06 Nov 2009 16:38:58 GMT

Hello All,

we have backup filer on which Mulipathing is configured.

so we dont have any free ports to configure the Tape Library to the filer.so my question is we want to remove the multipathing and configure the tape library directly to the filer.

can any one help me out doing the process...

Thanks in Advance..

Naveen.

NFS Archiving any Installed Base ?

community@netapp.com — Tue, 17 Nov 2009 14:03:42 GMT

Hi,

Do we have any implementation of Archiving in NFSv4 ?

Regards,

Bakshana

Any alternate way to replace /etc/usermap.cfg file

community@netapp.com — Tue, 17 Nov 2009 06:43:27 GMT

Hi All,

Actually I am looking to find out a way to manage /etc/usermap.cfg centrally instead of managing on each and every filer that is not kind of enterprise way of working. I don't have any idea if we can get rid off /etc/usermap.cfg file and have some otherway to translater user centerally. Don't know if LDAP provides the way.

Following is requirement:-

1/ If some CIFS user wants to access unix security style qtree then how to provide access to a particular CIFS user or CIFS group without the traditional way of translating user from CIFS to Unix with help of /etc/usermap.cfg because thats not managed centerally.

2/ If some Unix user wants to access ntfs security style qtree then how to provide access to a particular unix user or unix group but again without help of /etc/usermap.cfg.

I am thinking following things

1/ If its possible to manage /etc/usermap.cfg file centerally then go with traditional way of translating UNIX/CIFS user to CIFS/UNIX user but manage /etc/usermap.cfg file centrally ?

2/ Does LDAP provide any way to map UNIX and CIFS user and also grant access by translating user from unix to cifs and vice-versa ?

3/ Any other better way to fullfill this requirement ?

Can anyone comment on and provide the clue to explore things further.

Thanks & Regards,
Raju

Cannot see NetApp snapshots in Windows 7 previous version tab.

community@netapp.com — Wed, 08 Jul 2009 09:42:34 GMT

I have problem to access NetApp snapshots on Windows 7 in “previous version tab” and anyone has this experience? Do I need to configure anything in OnTap to make this works?

urgent help in snapmirror performance.

community@netapp.com — Wed, 11 Nov 2009 18:13:40 GMT

Hello folks,

we have newly setup a source site & DR site.

configured snapmirroring between these two sites for data replication and we have 100Mbs pipe between these two sites and my issue is we are seeing poor performance on data replication from source site to destination site..& it is taking couple of hours to transmitt 1.5 Gb data from source site to destination site.

Is there any thing that i can tune up from filer side to make the data replication fast..?

please give me your suggestions.

Thanks in advance.

Cannot delete folder on filer

community@netapp.com — Tue, 10 Nov 2009 02:49:20 GMT

Hi All,

A very good day to all of you. I have been trouble by this problem for a while. An empty folder in the filer that need to be deleted, no matter what, it cannot be deleted. the folder keep prompting that the folder is in use by a user or another program. But the actual facts is that there is no connection to the folders and the folder ACL has been removed, except the administrators.

Any suggestion for a solution to the problem will be most appreicated. Thank you.

iSCSI service shutdown after reboot

community@netapp.com — Sat, 07 Nov 2009 15:28:20 GMT

Hello, all!

I've a bit a puzzle here regarding iSCSI services. Namely, when rebooted, one of our systems tried to start iSCSI automatically - as it should - but the very next second it, the service was stopped. Here's the Autosupport segment describing it:

Sat Nov 7 15:28:12 CET [dfu.firmwareUpToDate:info]: Firmware is up-to-date on all disk drives
Sat Nov 7 15:28:12 CET [sfu.firmwareUpToDate:info]: Firmware is up-to-date on all disk shelves.
Sat Nov 7 15:28:15 CET [10/100/1000/e0b:info]: Ethernet e0b: Link up
Sat Nov 7 15:28:15 CET [10/100/1000/e0a:info]: Ethernet e0a: Link up
Sat Nov 7 15:28:17 CET [iscsi.service.startup:info]: iSCSI service startup
Sat Nov 7 15:28:18 CET [rc:ALERT]: timed: time daemon started
Sat Nov 7 15:28:18 CET [iscsi.service.shutdown:info]: iSCSI service shutdown
Sat Nov 7 15:28:19 CET [mgr.boot.disk_done:info]: NetApp Release 7.2.5.1 boot complete. Last disk update written at Sat Nov 7 13:23:25 CET 2009
Sat Nov 7 15:28:20 CET [mgr.boot.reason_ok:notice]: System rebooted.

Needles to say, none of the servers couldn't establish iSCSI connections. Any thoughts on what might've caused this?

Thanks,

Igor