Re: SAS-Exp 9300-8i or Raid-Contr 9750-4i ?

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Hi Jacob,
are you sure, that megacli is correct for the 9750-4i (not 9750-4i4e) ?
The 9750-4i is not in the list of supported devices.

btw, what makes the difference between jbod and raid-single-disk?

Thanks,
  Markus
Am 23.04.2015 um 13:32 schrieb Weeks, Jacob (RIS-BCT):
The 9750-4i may support JBOD mode. If you would like to test, install the MegaCLI tools. (Warning, this will clear the RAID configuration on your device)

This is the command for switching the RAID controller to JBOD mode:

#megacli -AdpSetProp -EnableJBOD -1 -aAll

Thanks,

Jacob

-----Original Message-----
From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf Of Markus Goldberg
Sent: Thursday, April 23, 2015 5:41 AM
To: ceph-users@xxxxxxxxxxxxxx
Subject:  SAS-Exp 9300-8i or Raid-Contr 9750-4i ?

Hi,
i will upgrade my existing Hardware (in 3 SC847-cases with 30 HDDs each) the next days.
Should i buy a SAS-Expander 9300-8i or keep my existing Raid-Contr 9750-4i.

The 9300 will give me real Jbod , the 9750 only single-disk Raids.

Does this make a real difference ? Should i spend or keep money?

--
MfG,
    Markus Goldberg

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Markus Goldberg       Universität Hildesheim
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--
MfG,
  Markus Goldberg

--------------------------------------------------------------------------
Markus Goldberg       Universität Hildesheim
                      Rechenzentrum
Tel +49 5121 88392822 Universitätsplatz 1, D-31141 Hildesheim, Germany
Fax +49 5121 88392823 email goldberg@xxxxxxxxxxxxxxxxx
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