Dell PowerVault MD3260 - Manual (Page 9)

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Table 3. MD-Series Storage Array Rules for Non-Dense, 2U Models Only (MD3200,
MD3220, MD3200i, MD3220i, MD3600i, MD3620i, MD3600f and MD3620f)
MD3200
series
MD3200i
series
MD3600i
series
MD3600f
series
RULE
6Gbps
SAS
1Gbps
iSCSI
10Gbps
iSCSI
8Gbps
Fibre
Channel
Support for up to 120 physical disk slots (system default
configuration).
Up to nine MD1200 and/or MD1220 series expansion
enclosures can be attached to an MD storage array. Any
mixture of MD1200 and MD1220 enclosures for a total of 120
physical slots is supported.    
Support for up to 192 physical slots through a premium feature
option.
Up to fifteen MD1200 and/or MD1220 series expansion
enclosures can be attached to an MD storage array. Any
mixture of MD1200 and MD1220 enclosures for a total of 192
physical slots is supported.    
Maximum number of physical disks in a RAID0, RAID1/10 is
120.
   
Maximum number of physical disks in a RAID5 or RAID6 disk
group is 30.
   
Attached MD1200 series expansion enclosures must be run in
unified mode.
   
The number of Snapshots (Legacy) is limited to:
 maximum of 256 per array
 maximum of 16 per VD
   
The number of Remote Replicas (Legacy) is limited to
 maximum of 16 pairs
N/A N/A N/A 
The number of Snapshots is limited to:
 maximum of 512 per array
 maximum of 128 per VD (32 per snapshot group with
a max of 4 snapshot groups per VD)
   