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тАО10-28-2008 12:21 PM
тАО10-28-2008 12:21 PM
E200 Hot swap procedure on ML310 G5
Anyway, via ORCA we configured two 250s drives as boot/raid 0+1 mirror drives, and later via ACU we added two basic 500s as backup drives that we expect to pull in a hotswap fashion for each backup cycle.
Disk manager shows the two 250s as one basic drive, which is different than how it showed under the embedded SATA controller, which was two dynamic drives which were RAID 1.
Anyway, my need is to be able to pull either of the 500's while the machine is running, for off-site backup purposes. I tested pulling one of them, but the system didn't like it. Said I was going to lose data. I powered down then powered back up with the drive reinserted again and all was well.
What is the procedure to pull a drive from a running E200 setup?
It would be great if there was a button or link in Disk manager to prepare a drive to be pulled.
Can you tell me the steps to do this and then to reinsert a drive later?
Thank you,
David Johnston
heycompman@comcast.net
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тАО10-28-2008 06:24 PM
тАО10-28-2008 06:24 PM
Re: E200 Hot swap procedure on ML310 G5
no there is no migration process between SATA embedded and Smart Array just to let you know
Embebbed SATA is Software/Firmware RAID on the other hand Smart array is completely Hardware RAID.
for your second question
there is nothing special or switch or button,
removing a HDD while you have RAID 1 is just take it out and put it back
I don't know which message you got when you removed it but of course is going to tell you or prevent you about data lost since RAID is not fault tolerance since you removed 1 HDD and if the other HDD fails is
not good at all
that's how hot plug and smart array controllers work
bye
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тАО10-28-2008 07:00 PM
тАО10-28-2008 07:00 PM
Re: E200 Hot swap procedure on ML310 G5
i eject a flash drive. Does this follow your experience??
Thank you again,
David
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тАО10-28-2008 08:02 PM
тАО10-28-2008 08:02 PM
Re: E200 Hot swap procedure on ML310 G5
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тАО10-28-2008 09:40 PM
тАО10-28-2008 09:40 PM
Re: E200 Hot swap procedure on ML310 G5
are they RAID 0?
what do you see in Array configuration utility?
you have those attached to e200 or Embedded SATA?
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тАО10-29-2008 04:04 AM
тАО10-29-2008 04:04 AM
Re: E200 Hot swap procedure on ML310 G5
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тАО10-29-2008 07:24 AM
тАО10-29-2008 07:24 AM
Re: E200 Hot swap procedure on ML310 G5
Since the 500gb drives are RIAD 0, there is a possibilty to lose data if you pull one while the system is running. Since there is no fault tolerance you see the message about loosing data. If the OS happens to make a write while your pulling the drive you could scramble the disk.
While I understand what your trying to do, it wouldn't be my first suggestion for a backup solution.
The only way to safely accomplish what your trying to do without the chance for loss of data is to power the server down and remove a drive.
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тАО10-29-2008 07:33 PM
тАО10-29-2008 07:33 PM
Re: E200 Hot swap procedure on ML310 G5
Maybe what I'm not grasping is the underlying architecture of RAID that is preventing hot-swap activity... Any additional explanations would be very appreciated, thanks, david