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NetWitness Discussions

DAC in RAID0 or RAID1

AngeOlivierAmbe
Beginner
Beginner

‎2017-11-28 10:18 AM

Hello Can you tell me if the DAC for Decoder, Concentrator and Archiver are in RAID0 or RAID1. What happen when one disk is down on DAC.

 

Thanks for your help.

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6 REPLIES 6

SergioAlmeida
Contributor Contributor
Contributor

‎2017-11-28 10:32 AM

Hi Ange,

The DAC are normally configured as RAID 5 so if you lost 1 disk you still be good.

Thanks,

Sergio

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Anonymous
Not applicable

‎2017-11-28 10:51 AM

Certain Decoder's may have ended up with a RAID0 array due to bug that temporarily existed in certain versions of the nwrarraycfg script. Instructions on how to check and fix can be found at the following link: https://community.rsa.com/docs/DOC-58963 

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AngeOlivierAmbe
Beginner
Beginner
In response to SergioAlmeida

‎2017-11-28 11:08 AM

Thanks Sergio

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AngeOlivierAmbe
Beginner
Beginner
In response to Anonymous

‎2017-11-28 11:09 AM

Thanks Evan

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JohnWu1
Occasional Contributor Occasional Contributor
Occasional Contributor

‎2017-11-28 11:10 AM

RSA has a built-in script nwraidutil.pl to show all DAC logical and physical drive (RAID) status, one can simply ssh into the desired RSA NW server and run the script.

 

Below is sample command output from a decoder with TWO DACs attached to Adapter 1, and each DAC has two logical (virtual) disks: RAID1 and RAID5:

 

[root@DECCODER ~]# nwraidutil.pl

RSA NetWitness RAID Utility Version 2012.09.07

Using /opt/MegaRAID/MegaCli/MegaCli64

------------------------

Logical Disk Information

------------------------

Physical Drive State Legend

-------------------------------------------------------------------------------------

B  Unconfigured(Bad) O  Online

D  Dedicated Hotspare and associated virtual drive number R  Rebuild

E  Hotspare prefers same enclosure S  Solid-State Drive

F  Foreign U  Unconfigured(Good)

G  Global hotspare X  Offline

I  Hotspare is revertible !  Failed

M  Missing ?  Unknown state

-------------------------------------------------------------------------------------

NOTE: 'E' does not prohibit a hotspare from being used in another enclosure, it is merely a preference

Logical Drive State Legend

------------------------------------------------

D  Degraded X  Offline

O  Optimal !  Failed

P  Partially Degraded ?  Unknown state

R  Rebuild

------------------------------------------------

Adapter: 0 - PERC H710P Mini

Virtual Disk: 0 (O) - Found 2 of 2 {Raid Level 1, 136.125 GB, 128 KB Stripe Size, WriteBack, ReadAdaptive, Cached, Write Cache OK if Bad BBU}

PD: 0   Enclosure: 32   Slot: 0  (O)   136.732 GB   TOSHIBA MK1401GRRB      DB089510A004FQ86        

PD: 1   Enclosure: 32   Slot: 1  (O)   136.732 GB   TOSHIBA MK1401GRRB      DB089510A00IFQ86        

Virtual Disk: 1 (O) - Found 2 of 2 {Raid Level 1, 931.0 GB, 128 KB Stripe Size, WriteBack, ReadAdaptive, Cached, Write Cache OK if Bad BBU}

PD: 0   Enclosure: 32   Slot: 2  (O)   931.512 GB   SEAGATE ST91000640SS    AS099XG715MZ            

PD: 1   Enclosure: 32   Slot: 3  (O)   931.512 GB   SEAGATE ST91000640SS    AS099XG70CN8            

Adapter: 1 - PERC H810 Adapter

Virtual Disk: 0 (O) - Found 2 of 2 {Raid Level 1, 3.637 TB, 128 KB Stripe Size, WriteBack, ReadAdaptive, Cached, Write Cache OK if Bad BBU}

PD: 0   Enclosure: 31   Slot: 0  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8RBNB            

PD: 1   Enclosure: 31   Slot: 1  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QV26            

Virtual Disk: 1 (O) - Found 12 of 12 {Raid Level 5, 40.019 TB, 128 KB Stripe Size, WriteBack, ReadAdaptive, Cached, Write Cache OK if Bad BBU}

PD: 0   Enclosure: 31   Slot: 2  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8RARF            

PD: 1   Enclosure: 31   Slot: 3  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QVH6            

PD: 2   Enclosure: 31   Slot: 4  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QWGP            

PD: 3   Enclosure: 31   Slot: 5  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QVEK            

PD: 4   Enclosure: 31   Slot: 6  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QTEV            

PD: 5   Enclosure: 31   Slot: 7  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8RB66            

PD: 6   Enclosure: 31   Slot: 8  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QVWK            

PD: 7   Enclosure: 31   Slot: 9  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QW9F            

PD: 8   Enclosure: 31   Slot: 10 (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QV7X            

PD: 9   Enclosure: 31   Slot: 11 (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QV8W            

PD: 10  Enclosure: 31   Slot: 12 (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QW9T            

PD: 11  Enclosure: 31   Slot: 13 (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8RB1B            

Virtual Disk: 2 (O) - Found 2 of 2 {Raid Level 1, 3.637 TB, 128 KB Stripe Size, WriteBack, ReadAdaptive, Cached, Write Cache OK if Bad BBU}

PD: 0   Enclosure: 15   Slot: 0  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QTWQ            

PD: 1   Enclosure: 15   Slot: 1  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QWJY            

Virtual Disk: 3 (O) - Found 12 of 12 {Raid Level 5, 40.019 TB, 128 KB Stripe Size, WriteBack, ReadAdaptive, Cached, Write Cache OK if Bad BBU}

PD: 0   Enclosure: 15   Slot: 2  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8RBGV            

PD: 1   Enclosure: 15   Slot: 3  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QTNY            

PD: 2   Enclosure: 15   Slot: 4  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QV3Q            

PD: 3   Enclosure: 15   Slot: 5  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8RAJ6            

PD: 4   Enclosure: 15   Slot: 6  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QTTL            

PD: 5   Enclosure: 15   Slot: 7  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8RANK            

PD: 6   Enclosure: 15   Slot: 8  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QV9Q            

PD: 7   Enclosure: 15   Slot: 9  (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8RAQT            

PD: 8   Enclosure: 15   Slot: 10 (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QTQZ            

PD: 9   Enclosure: 15   Slot: 11 (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8R99E            

PD: 10  Enclosure: 15   Slot: 12 (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QWQ7            

PD: 11  Enclosure: 15   Slot: 13 (O)   3.638 TB     SEAGATE ST4000NXCLAR4000GS1FZ1Z8QTR1            

No logical disk problems found.

-------------------------

Physical Disk Information

-------------------------

Physical Drive State Legend

-------------------------------------------------------------------------------------

B  Unconfigured(Bad) O  Online

D  Dedicated Hotspare and associated virtual drive number R  Rebuild

E  Hotspare prefers same enclosure S  Solid-State Drive

F  Foreign U  Unconfigured(Good)

G  Global hotspare X  Offline

I  Hotspare is revertible !  Failed

M  Missing ?  Unknown state

-------------------------------------------------------------------------------------

NOTE: 'E' does not prohibit a hotspare from being used in another enclosure, it is merely a preference

Adapters found: 2

Adapter 0 (PERC H710P Mini) enclosures found: 1

Adapter 0 (PERC H710P Mini) enclosure 32 slots found: 4

Encl  Slot  State     P.Fail.Count  Raw Size       Inquiry Data

32    0     (O)       0             136.732 GB     TOSHIBA MK1401GRRB      DB089510A004FQ86        

32    1     (O)       0             136.732 GB     TOSHIBA MK1401GRRB      DB089510A00IFQ86        

32    2     (O)       0             931.512 GB     SEAGATE ST91000640SS    AS099XG715MZ            

32    3     (O)       0             931.512 GB     SEAGATE ST91000640SS    AS099XG70CN8            

Adapter 1 (PERC H810 Adapter) enclosures found: 2

Adapter 1 (PERC H810 Adapter) enclosure 15 slots found: 15

Encl  Slot  State     P.Fail.Count  Raw Size       Inquiry Data

15    0     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QTWQ            

15    1     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QWJY            

15    2     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8RBGV            

15    3     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QTNY            

15    4     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QV3Q            

15    5     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8RAJ6            

15    6     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QTTL            

15    7     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8RANK            

15    8     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QV9Q            

15    9     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8RAQT            

15    10    (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QTQZ            

15    11    (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8R99E            

15    12    (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QWQ7            

15    13    (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QTR1            

15    14    (GEI)     0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8R9MW            Hotspare Information

Adapter 1 (PERC H810 Adapter) enclosure 31 slots found: 15

Encl  Slot  State     P.Fail.Count  Raw Size       Inquiry Data

31    0     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8RBNB            

31    1     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QV26            

31    2     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8RARF            

31    3     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QVH6            

31    4     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QWGP            

31    5     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QVEK            

31    6     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QTEV            

31    7     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8RB66            

31    8     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QVWK            

31    9     (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QW9F            

31    10    (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QV7X            

31    11    (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QV8W            

31    12    (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8QW9T            

31    13    (O)       0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8RB1B            

31    14    (GEI)     0             3.638 TB       SEAGATE ST4000NXCLAR4000GS1FZ1Z8RASE            Hotspare Information

No physical disk problems found.

-------------------

Adapter Information

-------------------

Adapters present: 2

Adapter 0:

                    [Product Name]  PERC H710P Mini

                [Firmware Version]  3.131.05-3415

                    [Serial Number]  46R02MR

                          [Memory]  1024MB

                    [Alarm Device]  Absent

                    [Alarm Enabled]  Disabled

        [Memory Correctable Errors]  0

      [Memory Uncorrectable Errors]  0

              [Battery Backup Unit]  Present

    [Restore HotSpare on Insertion]  Disabled

    [Use Full Disk Encryption Only]  Yes

          [Security Keys Assigned]  No

            [Security Keys Failed]  No

      [Security Keys Not Backed Up]  No

                  [Virtual Drives]  2

                    [VD's Degraded]  0

                    [VD's Offline]  0

                    [Failed Disks]  0

Adapter 1:

                    [Product Name]  PERC H810 Adapter

                [Firmware Version]  3.131.05-3415

                    [Serial Number]  42C009F

                          [Memory]  1024MB

                    [Alarm Device]  Absent

                    [Alarm Enabled]  Disabled

        [Memory Correctable Errors]  0

      [Memory Uncorrectable Errors]  0

              [Battery Backup Unit]  Present

    [Restore HotSpare on Insertion]  Disabled

    [Use Full Disk Encryption Only]  Yes

          [Security Keys Assigned]  No

            [Security Keys Failed]  No

      [Security Keys Not Backed Up]  No

                  [Virtual Drives]  4

                    [VD's Degraded]  0

                    [VD's Offline]  0

                    [Failed Disks]  0

[root@DECCODER ~]#

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AngeOlivierAmbe
Beginner
Beginner
In response to JohnWu1

‎2017-11-28 11:30 AM

Thanks John

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