is it possible to create a file on a particular OST? TIA
You can use the lfs utility to route your file to any particular OST/ s. On Jul 11, 4:38 pm, "Mag Gam" <magaw... at gmail.com> wrote:> is it possible to create a file on a particular OST? > > TIA > _______________________________________________ > Lustre-discuss mailing list > Lustre-disc... at lists.lustre.orghttp://lists.lustre.org/mailman/listinfo/lustre-discuss
Hi Mag, On Friday 11 July 2008 04:38:40 am Mag Gam wrote:> is it possible to create a file on a particular OST?I guess you can do so using the "lfs setstripe" command. You can set the stripping information on a file or directory so that it only uses one OST. That''s the case by default, but you need to use setstripe to specify which OST you want to use. For instance, the following command will put "yourfile" of the first OST (id 0): $ lfs setstripe --count 1 --index 0 yourfile $ dd if=/dev/zero of=yourfile count=1 bs=100M 1+0 records in 1+0 records out $ lfs getstripe yourfile OBDS: 0: home-OST0000_UUID ACTIVE [...] yourfile obdidx objid objid group 0 33459243 0x1fe8c2b 0 Cheers, -- Kilian
Really? How ? I been trying to figure this out. Can you please give me an example? TIA On Mon, Jul 14, 2008 at 7:16 AM, Dhruv <DhruvDesaai at gmail.com> wrote:> You can use the lfs utility to route your file to any particular OST/ > s. > > On Jul 11, 4:38 pm, "Mag Gam" <magaw... at gmail.com> wrote: >> is it possible to create a file on a particular OST? >> >> TIA >> _______________________________________________ >> Lustre-discuss mailing list >> Lustre-disc... at lists.lustre.orghttp://lists.lustre.org/mailman/listinfo/lustre-discuss > _______________________________________________ > Lustre-discuss mailing list > Lustre-discuss at lists.lustre.org > http://lists.lustre.org/mailman/listinfo/lustre-discuss >
BTW, I have read that manual page several times, http://manual.lustre.org/manual/LustreManual16_HTML/StripingAndIOOptions.html#50544707_pgfId-5529 And I could still not find out how to do this... TIA On Tue, Jul 15, 2008 at 8:38 PM, Mag Gam <magawake at gmail.com> wrote:> Really? How ? > > I been trying to figure this out. > > Can you please give me an example? > > TIA > > On Mon, Jul 14, 2008 at 7:16 AM, Dhruv <DhruvDesaai at gmail.com> wrote: >> You can use the lfs utility to route your file to any particular OST/ >> s. >> >> On Jul 11, 4:38 pm, "Mag Gam" <magaw... at gmail.com> wrote: >>> is it possible to create a file on a particular OST? >>> >>> TIA >>> _______________________________________________ >>> Lustre-discuss mailing list >>> Lustre-disc... at lists.lustre.orghttp://lists.lustre.org/mailman/listinfo/lustre-discuss >> _______________________________________________ >> Lustre-discuss mailing list >> Lustre-discuss at lists.lustre.org >> http://lists.lustre.org/mailman/listinfo/lustre-discuss >> >
Hi,
Type ''lfs help setstripe'' on lustre client node
>lfs help setstripe
setstripe: Create a new file with a specific striping pattern or
set the default striping pattern on an existing directory or
delete the default striping pattern from an existing directory
usage: setstripe <filename|dirname> <stripe_size>
<stripe_index>
<stripe_count>
or
setstripe <filename|dirname> [--size|-s stripe_size]
[--index|-i stripe_index]
[--count|-c stripe_count]
or
setstripe -d <dirname> (to delete default striping)
stripe_size: Number of bytes on each OST (0 filesystem default)
Can be specified with k, m or g (in KB, MB and GB
respectively)
stripe_index: OST index of first stripe (-1 filesystem default)
stripe_count: Number of OSTs to stripe over (0 default, -1 all)
Ok lets now using information above set that a particular file will be
written to a particular OST.
For this exercise we assume we have a file system that consists of four OST
lctl dl
0 UP mgc MGC10.143.245.201 at tcp a5f811be-0c46-09ee-2b5d-f59c569dba2e 5
1 UP lov ddn_home-clilov-00000102280ca800
d4470bbd-9917-1651-13d0-7736bfcac109 4
2 UP mdc ddn_home-MDT0000-mdc-00000102280ca800
d4470bbd-9917-1651-13d0-7736bfcac109 5
3 UP osc ddn_home-OST0000-osc-00000102280ca800
d4470bbd-9917-1651-13d0-7736bfcac109 5
4 UP osc ddn_home-OST0001-osc-00000102280ca800
d4470bbd-9917-1651-13d0-7736bfcac109 5
5 UP osc ddn_home-OST0002-osc-00000102280ca800
d4470bbd-9917-1651-13d0-7736bfcac109 5
6 UP osc ddn_home-OST0003-osc-00000102280ca800
d4470bbd-9917-1651-13d0-7736bfcac109 5
Lets say we would like to create file my_work.dat on ddn_home-OST0002
The command line for that will look like this:
> lfs setstripe -i 3 -c 1 /home/my_home/my_work.dat
Now if you create file my_work.dat in /home/my_home it will be created
on ddn_home-OST0002.
If you would like to make sure that new file is on the OST of you choice
use ''lfs getstripe'' command to checkout striping pattern on
the file
you''ve just created.
> lfs getstripe /home/my_home/my_work.dat
I know that manual doesn''t give you an exact example how to do that but
it gives an idea how striping works so please experiment with it to fond
out what else you could do with lfs setstripe.
I hope it helps.
Cheers
Wojciech
Mag Gam wrote:> BTW,
>
> I have read that manual page several times,
>
http://manual.lustre.org/manual/LustreManual16_HTML/StripingAndIOOptions.html#50544707_pgfId-5529
>
> And I could still not find out how to do this...
>
>
> TIA
>
>
> On Tue, Jul 15, 2008 at 8:38 PM, Mag Gam <magawake at gmail.com>
wrote:
>
>> Really? How ?
>>
>> I been trying to figure this out.
>>
>> Can you please give me an example?
>>
>> TIA
>>
>> On Mon, Jul 14, 2008 at 7:16 AM, Dhruv <DhruvDesaai at gmail.com>
wrote:
>>
>>> You can use the lfs utility to route your file to any particular
OST/
>>> s.
>>>
>>> On Jul 11, 4:38 pm, "Mag Gam" <magaw... at
gmail.com> wrote:
>>>
>>>> is it possible to create a file on a particular OST?
>>>>
>>>> TIA
>>>> _______________________________________________
>>>> Lustre-discuss mailing list
>>>> Lustre-disc... at
lists.lustre.orghttp://lists.lustre.org/mailman/listinfo/lustre-discuss
>>>>
>>> _______________________________________________
>>> Lustre-discuss mailing list
>>> Lustre-discuss at lists.lustre.org
>>> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>>>
>>>
> _______________________________________________
> Lustre-discuss mailing list
> Lustre-discuss at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>
Thank you. This makes very good sense. (you should wiki this :-) A similar question, is it possible to move from a striped volume to a non-striped volumes because I want to decommission an OST. For instance, lctl dl 0 UP mgc MGC10.143.245.201 at tcp a5f811be-0c46-09ee-2b5d-f59c569dba2e 5 1 UP lov ddn_home-clilov-00000102280ca800 d4470bbd-9917-1651-13d0-7736bfcac109 4 2 UP mdc ddn_home-MDT0000-mdc-00000102280ca800 d4470bbd-9917-1651-13d0-7736bfcac109 5 3 UP osc ddn_home-OST0000-osc-00000102280ca800 d4470bbd-9917-1651-13d0-7736bfcac109 5 4 UP osc ddn_home-OST0001-osc-00000102280ca800 d4470bbd-9917-1651-13d0-7736bfcac109 5 5 UP osc ddn_home-OST0002-osc-00000102280ca800 d4470bbd-9917-1651-13d0-7736bfcac109 5 6 UP osc ddn_home-OST0003-osc-00000102280ca800 d4470bbd-9917-1651-13d0-7736bfcac109 5 I want to decommission 5 (ddn_home-OST0002-osc-00000102280ca800), and I have a striped and non-striped data. The goal is I don''t want to disturb the clients. I have the option to disable writes but not reads. Any ideas how I can do that? TIA On Wed, Jul 16, 2008 at 6:38 AM, Wojciech Turek <wjt27 at cam.ac.uk> wrote:> Hi, > > Type ''lfs help setstripe'' on lustre client node > >>lfs help setstripe > setstripe: Create a new file with a specific striping pattern or > set the default striping pattern on an existing directory or > delete the default striping pattern from an existing directory > usage: setstripe <filename|dirname> <stripe_size> <stripe_index> > <stripe_count> > or > setstripe <filename|dirname> [--size|-s stripe_size] > [--index|-i stripe_index] > [--count|-c stripe_count] > or > setstripe -d <dirname> (to delete default striping) > stripe_size: Number of bytes on each OST (0 filesystem default) > Can be specified with k, m or g (in KB, MB and GB > respectively) > stripe_index: OST index of first stripe (-1 filesystem default) > stripe_count: Number of OSTs to stripe over (0 default, -1 all) > > Ok lets now using information above set that a particular file will be > written to a particular OST. > For this exercise we assume we have a file system that consists of four OST > > lctl dl > 0 UP mgc MGC10.143.245.201 at tcp a5f811be-0c46-09ee-2b5d-f59c569dba2e 5 > 1 UP lov ddn_home-clilov-00000102280ca800 > d4470bbd-9917-1651-13d0-7736bfcac109 4 > 2 UP mdc ddn_home-MDT0000-mdc-00000102280ca800 > d4470bbd-9917-1651-13d0-7736bfcac109 5 > 3 UP osc ddn_home-OST0000-osc-00000102280ca800 > d4470bbd-9917-1651-13d0-7736bfcac109 5 > 4 UP osc ddn_home-OST0001-osc-00000102280ca800 > d4470bbd-9917-1651-13d0-7736bfcac109 5 > 5 UP osc ddn_home-OST0002-osc-00000102280ca800 > d4470bbd-9917-1651-13d0-7736bfcac109 5 > 6 UP osc ddn_home-OST0003-osc-00000102280ca800 > d4470bbd-9917-1651-13d0-7736bfcac109 5 > > Lets say we would like to create file my_work.dat on ddn_home-OST0002 > The command line for that will look like this: >> lfs setstripe -i 3 -c 1 /home/my_home/my_work.dat > > Now if you create file my_work.dat in /home/my_home it will be created on > ddn_home-OST0002. > > If you would like to make sure that new file is on the OST of you choice use > ''lfs getstripe'' command to checkout striping pattern on the file you''ve > just created. >> lfs getstripe /home/my_home/my_work.dat > > I know that manual doesn''t give you an exact example how to do that but it > gives an idea how striping works so please experiment with it to fond out > what else you could do with lfs setstripe. > > I hope it helps. > > Cheers > > Wojciech > > > Mag Gam wrote: >> >> BTW, >> >> I have read that manual page several times, >> >> http://manual.lustre.org/manual/LustreManual16_HTML/StripingAndIOOptions.html#50544707_pgfId-5529 >> >> And I could still not find out how to do this... >> >> >> TIA >> >> >> On Tue, Jul 15, 2008 at 8:38 PM, Mag Gam <magawake at gmail.com> wrote: >> >>> >>> Really? How ? >>> >>> I been trying to figure this out. >>> >>> Can you please give me an example? >>> >>> TIA >>> >>> On Mon, Jul 14, 2008 at 7:16 AM, Dhruv <DhruvDesaai at gmail.com> wrote: >>> >>>> >>>> You can use the lfs utility to route your file to any particular OST/ >>>> s. >>>> >>>> On Jul 11, 4:38 pm, "Mag Gam" <magaw... at gmail.com> wrote: >>>> >>>>> >>>>> is it possible to create a file on a particular OST? >>>>> >>>>> TIA >>>>> _______________________________________________ >>>>> Lustre-discuss mailing list >>>>> >>>>> Lustre-disc... at lists.lustre.orghttp://lists.lustre.org/mailman/listinfo/lustre-discuss >>>>> >>>> >>>> _______________________________________________ >>>> Lustre-discuss mailing list >>>> Lustre-discuss at lists.lustre.org >>>> http://lists.lustre.org/mailman/listinfo/lustre-discuss >>>> >>>> >> >> _______________________________________________ >> Lustre-discuss mailing list >> Lustre-discuss at lists.lustre.org >> http://lists.lustre.org/mailman/listinfo/lustre-discuss >> >
Hi, I guess First set the striping pattern on the root directory of the file system to not stripe to OST that you are planning to decommission. Then Scans each file and directory for it''s striping pattern using ''lfs getstripe'' command then if the file is striped to the OST you want to decommission simply copy the file to backup directory. Make sure that backup directory has set a striping pattern to not to stripe to the OST you are moving data away from. Then you simply replace the old files with files from backup directory. After you finish deactivate the OST. Information on how to deactivate an OST you can find in the manual. I hope it helps. Wojciech On 16 Jul 2008, at 12:08, Mag Gam wrote:> Thank you. This makes very good sense. (you should wiki this :-) > > > A similar question, is it possible to move from a striped volume to a > non-striped volumes because I want to decommission an OST. For > instance, > > lctl dl > 0 UP mgc MGC10.143.245.201 at tcp a5f811be-0c46-09ee-2b5d-f59c569dba2e 5 > 1 UP lov ddn_home-clilov-00000102280ca800 > d4470bbd-9917-1651-13d0-7736bfcac109 4 > 2 UP mdc ddn_home-MDT0000-mdc-00000102280ca800 > d4470bbd-9917-1651-13d0-7736bfcac109 5 > 3 UP osc ddn_home-OST0000-osc-00000102280ca800 > d4470bbd-9917-1651-13d0-7736bfcac109 5 > 4 UP osc ddn_home-OST0001-osc-00000102280ca800 > d4470bbd-9917-1651-13d0-7736bfcac109 5 > 5 UP osc ddn_home-OST0002-osc-00000102280ca800 > d4470bbd-9917-1651-13d0-7736bfcac109 5 > 6 UP osc ddn_home-OST0003-osc-00000102280ca800 > d4470bbd-9917-1651-13d0-7736bfcac109 5 > > > I want to decommission 5 (ddn_home-OST0002-osc-00000102280ca800), and > I have a striped and non-striped data. The goal is I don''t want to > disturb the clients. I have the option to disable writes but not > reads. > > Any ideas how I can do that? > > > TIA > > > On Wed, Jul 16, 2008 at 6:38 AM, Wojciech Turek <wjt27 at cam.ac.uk> > wrote: >> Hi, >> >> Type ''lfs help setstripe'' on lustre client node >> >>> lfs help setstripe >> setstripe: Create a new file with a specific striping pattern or >> set the default striping pattern on an existing directory or >> delete the default striping pattern from an existing directory >> usage: setstripe <filename|dirname> <stripe_size> <stripe_index> >> <stripe_count> >> or >> setstripe <filename|dirname> [--size|-s stripe_size] >> [--index|-i stripe_index] >> [--count|-c stripe_count] >> or >> setstripe -d <dirname> (to delete default striping) >> stripe_size: Number of bytes on each OST (0 filesystem default) >> Can be specified with k, m or g (in KB, MB and GB >> respectively) >> stripe_index: OST index of first stripe (-1 filesystem default) >> stripe_count: Number of OSTs to stripe over (0 default, -1 all) >> >> Ok lets now using information above set that a particular file will >> be >> written to a particular OST. >> For this exercise we assume we have a file system that consists of >> four OST >> >> lctl dl >> 0 UP mgc MGC10.143.245.201 at tcp a5f811be-0c46-09ee-2b5d-f59c569dba2e 5 >> 1 UP lov ddn_home-clilov-00000102280ca800 >> d4470bbd-9917-1651-13d0-7736bfcac109 4 >> 2 UP mdc ddn_home-MDT0000-mdc-00000102280ca800 >> d4470bbd-9917-1651-13d0-7736bfcac109 5 >> 3 UP osc ddn_home-OST0000-osc-00000102280ca800 >> d4470bbd-9917-1651-13d0-7736bfcac109 5 >> 4 UP osc ddn_home-OST0001-osc-00000102280ca800 >> d4470bbd-9917-1651-13d0-7736bfcac109 5 >> 5 UP osc ddn_home-OST0002-osc-00000102280ca800 >> d4470bbd-9917-1651-13d0-7736bfcac109 5 >> 6 UP osc ddn_home-OST0003-osc-00000102280ca800 >> d4470bbd-9917-1651-13d0-7736bfcac109 5 >> >> Lets say we would like to create file my_work.dat on ddn_home-OST0002 >> The command line for that will look like this: >>> lfs setstripe -i 3 -c 1 /home/my_home/my_work.dat >> >> Now if you create file my_work.dat in /home/my_home it will be >> created on >> ddn_home-OST0002. >> >> If you would like to make sure that new file is on the OST of you >> choice use >> ''lfs getstripe'' command to checkout striping pattern on the file >> you''ve >> just created. >>> lfs getstripe /home/my_home/my_work.dat >> >> I know that manual doesn''t give you an exact example how to do that >> but it >> gives an idea how striping works so please experiment with it to >> fond out >> what else you could do with lfs setstripe. >> >> I hope it helps. >> >> Cheers >> >> Wojciech >> >> >> Mag Gam wrote: >>> >>> BTW, >>> >>> I have read that manual page several times, >>> >>> http://manual.lustre.org/manual/LustreManual16_HTML/StripingAndIOOptions.html#50544707_pgfId-5529 >>> >>> And I could still not find out how to do this... >>> >>> >>> TIA >>> >>> >>> On Tue, Jul 15, 2008 at 8:38 PM, Mag Gam <magawake at gmail.com> wrote: >>> >>>> >>>> Really? How ? >>>> >>>> I been trying to figure this out. >>>> >>>> Can you please give me an example? >>>> >>>> TIA >>>> >>>> On Mon, Jul 14, 2008 at 7:16 AM, Dhruv <DhruvDesaai at gmail.com> >>>> wrote: >>>> >>>>> >>>>> You can use the lfs utility to route your file to any particular >>>>> OST/ >>>>> s. >>>>> >>>>> On Jul 11, 4:38 pm, "Mag Gam" <magaw... at gmail.com> wrote: >>>>> >>>>>> >>>>>> is it possible to create a file on a particular OST? >>>>>> >>>>>> TIA >>>>>> _______________________________________________ >>>>>> Lustre-discuss mailing list >>>>>> >>>>>> Lustre-disc... at lists.lustre.orghttp://lists.lustre.org/mailman/listinfo/lustre-discuss >>>>>> >>>>> >>>>> _______________________________________________ >>>>> Lustre-discuss mailing list >>>>> Lustre-discuss at lists.lustre.org >>>>> http://lists.lustre.org/mailman/listinfo/lustre-discuss >>>>> >>>>> >>> >>> _______________________________________________ >>> Lustre-discuss mailing list >>> Lustre-discuss at lists.lustre.org >>> http://lists.lustre.org/mailman/listinfo/lustre-discuss >>> >> > _______________________________________________ > Lustre-discuss mailing list > Lustre-discuss at lists.lustre.org > http://lists.lustre.org/mailman/listinfo/lustre-discuss
Yes. This is what I was thinking too. I suppose I can use rsync to move the data from old to backup directory. But what if users starts to write to to the OST that is going to be decommissioned. Is there a way to make it readonly? On Thu, Jul 17, 2008 at 6:19 AM, Wojciech Turek <wjt27 at cam.ac.uk> wrote:> Hi, > > I guess > > First set the striping pattern on the root directory of the file system to > not stripe to OST that you are planning to decommission. Then Scans each > file and directory for it''s striping pattern using ''lfs getstripe'' command > then if the file is striped to the OST you want to decommission simply copy > the file to backup directory. Make sure that backup directory has set a > striping pattern to not to stripe to the OST you are moving data away from. > Then you simply replace the old files with files from backup directory. > After you finish deactivate the OST. Information on how to deactivate an OST > you can find in the manual. > > I hope it helps. > > Wojciech > > > On 16 Jul 2008, at 12:08, Mag Gam wrote: > >> Thank you. This makes very good sense. (you should wiki this :-) >> >> >> A similar question, is it possible to move from a striped volume to a >> non-striped volumes because I want to decommission an OST. For >> instance, >> >> lctl dl >> 0 UP mgc MGC10.143.245.201 at tcp a5f811be-0c46-09ee-2b5d-f59c569dba2e 5 >> 1 UP lov ddn_home-clilov-00000102280ca800 >> d4470bbd-9917-1651-13d0-7736bfcac109 4 >> 2 UP mdc ddn_home-MDT0000-mdc-00000102280ca800 >> d4470bbd-9917-1651-13d0-7736bfcac109 5 >> 3 UP osc ddn_home-OST0000-osc-00000102280ca800 >> d4470bbd-9917-1651-13d0-7736bfcac109 5 >> 4 UP osc ddn_home-OST0001-osc-00000102280ca800 >> d4470bbd-9917-1651-13d0-7736bfcac109 5 >> 5 UP osc ddn_home-OST0002-osc-00000102280ca800 >> d4470bbd-9917-1651-13d0-7736bfcac109 5 >> 6 UP osc ddn_home-OST0003-osc-00000102280ca800 >> d4470bbd-9917-1651-13d0-7736bfcac109 5 >> >> >> I want to decommission 5 (ddn_home-OST0002-osc-00000102280ca800), and >> I have a striped and non-striped data. The goal is I don''t want to >> disturb the clients. I have the option to disable writes but not >> reads. >> >> Any ideas how I can do that? >> >> >> TIA >> >> >> On Wed, Jul 16, 2008 at 6:38 AM, Wojciech Turek <wjt27 at cam.ac.uk> wrote: >>> >>> Hi, >>> >>> Type ''lfs help setstripe'' on lustre client node >>> >>>> lfs help setstripe >>> >>> setstripe: Create a new file with a specific striping pattern or >>> set the default striping pattern on an existing directory or >>> delete the default striping pattern from an existing directory >>> usage: setstripe <filename|dirname> <stripe_size> <stripe_index> >>> <stripe_count> >>> or >>> setstripe <filename|dirname> [--size|-s stripe_size] >>> [--index|-i stripe_index] >>> [--count|-c stripe_count] >>> or >>> setstripe -d <dirname> (to delete default striping) >>> stripe_size: Number of bytes on each OST (0 filesystem default) >>> Can be specified with k, m or g (in KB, MB and GB >>> respectively) >>> stripe_index: OST index of first stripe (-1 filesystem default) >>> stripe_count: Number of OSTs to stripe over (0 default, -1 all) >>> >>> Ok lets now using information above set that a particular file will be >>> written to a particular OST. >>> For this exercise we assume we have a file system that consists of four >>> OST >>> >>> lctl dl >>> 0 UP mgc MGC10.143.245.201 at tcp a5f811be-0c46-09ee-2b5d-f59c569dba2e 5 >>> 1 UP lov ddn_home-clilov-00000102280ca800 >>> d4470bbd-9917-1651-13d0-7736bfcac109 4 >>> 2 UP mdc ddn_home-MDT0000-mdc-00000102280ca800 >>> d4470bbd-9917-1651-13d0-7736bfcac109 5 >>> 3 UP osc ddn_home-OST0000-osc-00000102280ca800 >>> d4470bbd-9917-1651-13d0-7736bfcac109 5 >>> 4 UP osc ddn_home-OST0001-osc-00000102280ca800 >>> d4470bbd-9917-1651-13d0-7736bfcac109 5 >>> 5 UP osc ddn_home-OST0002-osc-00000102280ca800 >>> d4470bbd-9917-1651-13d0-7736bfcac109 5 >>> 6 UP osc ddn_home-OST0003-osc-00000102280ca800 >>> d4470bbd-9917-1651-13d0-7736bfcac109 5 >>> >>> Lets say we would like to create file my_work.dat on ddn_home-OST0002 >>> The command line for that will look like this: >>>> >>>> lfs setstripe -i 3 -c 1 /home/my_home/my_work.dat >>> >>> Now if you create file my_work.dat in /home/my_home it will be created on >>> ddn_home-OST0002. >>> >>> If you would like to make sure that new file is on the OST of you choice >>> use >>> ''lfs getstripe'' command to checkout striping pattern on the file you''ve >>> just created. >>>> >>>> lfs getstripe /home/my_home/my_work.dat >>> >>> I know that manual doesn''t give you an exact example how to do that but >>> it >>> gives an idea how striping works so please experiment with it to fond out >>> what else you could do with lfs setstripe. >>> >>> I hope it helps. >>> >>> Cheers >>> >>> Wojciech >>> >>> >>> Mag Gam wrote: >>>> >>>> BTW, >>>> >>>> I have read that manual page several times, >>>> >>>> >>>> http://manual.lustre.org/manual/LustreManual16_HTML/StripingAndIOOptions.html#50544707_pgfId-5529 >>>> >>>> And I could still not find out how to do this... >>>> >>>> >>>> TIA >>>> >>>> >>>> On Tue, Jul 15, 2008 at 8:38 PM, Mag Gam <magawake at gmail.com> wrote: >>>> >>>>> >>>>> Really? How ? >>>>> >>>>> I been trying to figure this out. >>>>> >>>>> Can you please give me an example? >>>>> >>>>> TIA >>>>> >>>>> On Mon, Jul 14, 2008 at 7:16 AM, Dhruv <DhruvDesaai at gmail.com> wrote: >>>>> >>>>>> >>>>>> You can use the lfs utility to route your file to any particular OST/ >>>>>> s. >>>>>> >>>>>> On Jul 11, 4:38 pm, "Mag Gam" <magaw... at gmail.com> wrote: >>>>>> >>>>>>> >>>>>>> is it possible to create a file on a particular OST? >>>>>>> >>>>>>> TIA >>>>>>> _______________________________________________ >>>>>>> Lustre-discuss mailing list >>>>>>> >>>>>>> >>>>>>> Lustre-disc... at lists.lustre.orghttp://lists.lustre.org/mailman/listinfo/lustre-discuss >>>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> Lustre-discuss mailing list >>>>>> Lustre-discuss at lists.lustre.org >>>>>> http://lists.lustre.org/mailman/listinfo/lustre-discuss >>>>>> >>>>>> >>>> >>>> _______________________________________________ >>>> Lustre-discuss mailing list >>>> Lustre-discuss at lists.lustre.org >>>> http://lists.lustre.org/mailman/listinfo/lustre-discuss >>>> >>> >> _______________________________________________ >> Lustre-discuss mailing list >> Lustre-discuss at lists.lustre.org >> http://lists.lustre.org/mailman/listinfo/lustre-discuss > >