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01-05-2008, 10:28 AM
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 Extending LUN FastT Hello aix gurus, After I increased the LUN or the logical disk in the FastT, I do a " chvg -g <vgname>" right.. Now my question is, do I have to increase the filesystem or the logical volume? Also, can I do more than one increases or "increase capacity" in FastT so when I run "chvg -g <vgname>" it will pick all the changes in one shot..We are planning to add 40 gigs on 4 logical volume in the same volume group... Thanks pinoy...      |
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01-05-2008, 10:28 AM
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| Re: Extending LUN FastT Once you get the extra LUN allocated then you need to extend the VG woth whatever means you feel ( Eg: extendvg or extendvg4vp ) . Then you need to manually allocate the new PPs to each LV you wish . How can a VG know a bt our request ..  For adding for space for an LV you can use chfs command Synatx looks like : - chfs -a size=+<number>M <fs name> Hope this clarifies you ... |
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01-05-2008, 10:28 AM
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| Re: Extending LUN FastT Well, in the FastT you do specifies how much space you want e.g. 40gigs > For adding for space for an LV you can use chfs command > Synatx looks like : - chfs -a size=+<number>M <fs name> by issuing "chvg -g <vgname>" it will recognize the newly added PP's.. That's where i get confused... |
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01-05-2008, 10:29 AM
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| Re: Extending LUN FastT pinoy2ser@gmail.com wrote: > Well, in the FastT you do specifies how much space you want e.g. 40gigs > > > For adding for space for an LV you can use chfs command > > Synatx looks like : - chfs -a size=+<number>M <fs name> > > by issuing "chvg -g <vgname>" it will recognize the newly added PP's.. > > That's where i get confused... Just to confirm, your extending LUN's and not adding new ones? If you are then the chvg -g will do. check to see if the amount of PP's in the LUN's goes up as sometimes this doesn't work. If it doesn't you will need to varyoff/varyon. You will then need to extend the filesystems & LV's. Thanks Steven |
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01-05-2008, 10:29 AM
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| Re: Extending LUN FastT Steven, I have to also extend the LV? then extend the FS ? Is that the order? I thought you if you just extend the FS it will also extend the LV Thanx pinoy steven.langdale@gmail.com wrote: > pinoy2ser@gmail.com wrote: > > Well, in the FastT you do specifies how much space you want e.g. 40gigs > > > > > For adding for space for an LV you can use chfs command > > > Synatx looks like : - chfs -a size=+<number>M <fs name> > > > > by issuing "chvg -g <vgname>" it will recognize the newly added PP's.. > > > > That's where i get confused... > > Just to confirm, your extending LUN's and not adding new ones? > > If you are then the chvg -g will do. check to see if the amount of PP's > in the LUN's goes up as sometimes this doesn't work. If it doesn't you > will need to varyoff/varyon. > > You will then need to extend the filesystems & LV's. > > Thanks > > Steven |
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01-05-2008, 10:29 AM
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| Re: Extending LUN FastT pinoy2ser@gmail.com wrote: > Steven, > > I have to also extend the LV? then extend the FS ? > Is that the order? I thought you if you just extend the FS it will > also extend the LV > > Thanx > pinoy > > > > > steven.langdale@gmail.com wrote: > > pinoy2ser@gmail.com wrote: > > > Well, in the FastT you do specifies how much space you want e.g. 40gigs > > > > > > > For adding for space for an LV you can use chfs command > > > > Synatx looks like : - chfs -a size=+<number>M <fs name> > > > > > > by issuing "chvg -g <vgname>" it will recognize the newly added PP's.. > > > > > > That's where i get confused... > > > > Just to confirm, your extending LUN's and not adding new ones? > > > > If you are then the chvg -g will do. check to see if the amount of PP's > > in the LUN's goes up as sometimes this doesn't work. If it doesn't you > > will need to varyoff/varyon. > > > > You will then need to extend the filesystems & LV's. > > > > Thanks > > > > Steven Hi, 1. Extend the VG by running the chvg (as another poster said, check it has extended or you will need to varyoff/varyon) 2. Then extend any filesystems, by extending the filesystem the underlaying LV will also be extended. If you are adding new LUNS and not extending old ones then you will need to add the new LUN's into the VG rather than extend the VG and then extend the FS. Thats it. Scott |
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