Hi For scanning new LUN, we don't required reboot.
Kindly follow the below method:
Step1: Download & Installed the sg3_utils packages.
(Download the sg3_utils & sg3_utils_libs packages )
Note: download “rescan-scsi-bus.sh” script also anywhere on RHEL4 based.
#rpm –ivh sg3_utils*
Step2: Scan the new LUNs without rebooting the box.
a.) Take the output of inq utils or fdisk –l
b.) Execute the following script & take the output of inq utils or
fdisk –l and compare with your previous out put.
#/usr/bin/rescan-scsi-bus.sh (RHEL5)
Or
#./rescan-scsi-bus.sh (RHEL4)
Thaks-
Shankar
On Wed, Jun 15, 2011 at 5:47 AM, Sanjay Chakraborty
<sanjaychakrab@xxxxxxxxx> wrote:
> Did you scan the new storage ? If manual scan don't work (sometime it
> don't) reboot the server.
>
> Sanjay Chakraborty
>
> On Fri, Jun 10, 2011 at 11:34 AM, Anne Moore <diabeticithink@xxxxxxxxx> wrote:
>>
>>
>> Hello All!
>>
>>
>>
>> I have multiple RHEL 5.5 boxes, and I’m trying to partition
>> out (cut up) our 2.2 TB of storage on each one. However, neither Parted or
>> Fdisk will allow it on any of the RHEL 5.5 boxes. (We do have 20 RHEL 4.0
>> boxes, and it works perfectly on those.) Given it works fine with RHEL 4,0, I
>> assume this is a bug with RHEL 5.5?
>>
>>
>>
>> Here’s the problem:
>>
>>
>>
>> I’ve used GPT and msdos tables with this.
>>
>>
>>
>> Disk /dev/sdb: 2247GB
>>
>> Sector size (logical/physical): 512B/512B
>>
>> Partition Table: gpt
>>
>>
>>
>> Number Start End Size File
>> system Name Flags
>>
>>
>>
>> (parted) mkpart primary ext3 1024 73000
>>
>> (parted) mkpart primary ext3 60000 560000
>>
>> (parted) mkpart primary ext3 560000 999999
>>
>> (parted) mkpart extended ext3 999999 2143360
>>
>>
>>
>> Now we have:
>>
>> Number Start End
>> Size File system Name
>> Flags
>>
>> 1 1024MB
>> 60.0GB
>> 59.0GB
>> primary
>>
>> 2 60.0GB
>> 560GB
>> 500GB
>> primary
>>
>> 3 560GB
>> 1000GB
>> 440GB
>> primary
>>
>> 4
>> 1000GB 2143GB
>> 1143GB extended
>>
>> At this point, I can’t do anything else. I try to create
>> logical drives out of the extended, like so:
>>
>>
>>
>> I type in: (parted) mkpart logical ext3 999999 1400000
>>
>>
>>
>> And I get back this error:
>>
>> (parted) mkpart logical ext3 999999 1400000
>>
>> Warning: You requested a partition from 1000GB to 1400GB.
>>
>> The closest location we can manage is 2143GB to
>> 2143GB. Is this still
>>
>> acceptable to you?
>>
>> Yes/No?
>>
>>
>>
>> And it doesn’t matter what I type on that (parted) line, it
>> always comes back with this same error message.
>>
>>
>>
>> Again, this works fine in RHEL 4. But just won’t work on any
>> of our RHEL 5.5.
>>
>>
>>
>> Anyone have any ideas on this? Is perhaps RHEL 5.5 expecting
>> something else on the command line? Or perhaps know of a patch that resolves
>> this?
>>
>>
>>
>> Thanks to you all for the help.
>>
>>
>>
>> Anne M.
>>
>>
>>
>> Rebate Systems of Southern California
>>
>> Systems and Integration
>>
>>
>>
>>
>>
>>
>>
>>
>> --
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>
>
>
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