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тАО05-08-2005 06:29 PM
тАО05-08-2005 06:29 PM
Slow system response
Hi,
We have on site two DS25s and when connected to and a large file copy operation in progress, response at the command line is very slow. One has a SmartArray controller connected to it whilst the other only has internal disks.
Has anyone else experienced a similar problem?
Regards,
Trent
We have on site two DS25s and when connected to and a large file copy operation in progress, response at the command line is very slow. One has a SmartArray controller connected to it whilst the other only has internal disks.
Has anyone else experienced a similar problem?
Regards,
Trent
3 REPLIES 3
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тАО05-08-2005 08:47 PM
тАО05-08-2005 08:47 PM
Re: Slow system response
seems to be I/O related. If the os is installed out of the box tune it (have a look into the tuning guide).
Or open a call within the support center and request tuning assistence.
Or open a call within the support center and request tuning assistence.
Help() { FirstReadManual(urgently); Go_to_it;; }
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тАО05-10-2005 01:53 AM
тАО05-10-2005 01:53 AM
Re: Slow system response
Hi Trent,
if the problem is only on process of read/write on a disk, i think like Ralf, that could be a I/O problem.
You can check this with the comand:
#iostat 5 5 (interval - count)
and you can specify what device you want to ckeck too, in order to know if it's a problem with a specific device.
# iostat dsk12 dsk4 (example..)
have you checked the /var/adm/messages for an error or warning message?
REgards,
Santibon
if the problem is only on process of read/write on a disk, i think like Ralf, that could be a I/O problem.
You can check this with the comand:
#iostat 5 5 (interval - count)
and you can specify what device you want to ckeck too, in order to know if it's a problem with a specific device.
# iostat dsk12 dsk4 (example..)
have you checked the /var/adm/messages for an error or warning message?
REgards,
Santibon
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тАО05-10-2005 09:46 AM
тАО05-10-2005 09:46 AM
Re: Slow system response
Is your file copy completing in a reasonable amount of time? I wouldn't expect a single copy operation to stress a DS25 unless you had serious H/W issues. On the other hand, your question implies that the copy is going between servers and presumably over a network. What does
# netstat -I -i 2
look like while the copy is going on? You could be having interface speed/duplex/autonegotiation issues...
# netstat -I
look like while the copy is going on? You could be having interface speed/duplex/autonegotiation issues...
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