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Drive Specifications; Rack Space Requirements For The 5U Expansion Enclosures; Acoustical Specifications For 2077/2078-24G Or 2077/2078-Afg Sas Expansion Enclosures - IBM 2078-4F4 Quick Installation Manual

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Table 32. Rack space requirements for the 5U expansion enclosures
Enclosure
2077/2078-12G,
2077/2078-24G, or
2077/2078-AFG
2077-92G, 2077-A9G
2078-92G, 2078-A9G
Extra rack space requirements
Ensure that these additional space requirements, as shown in Table 33 on page 94, are available around
the enclosures.
Table 33. Clearances
Location
Left and right sides
Back
Supported drives for FlashSystem 5100 SAS expansion enclosures
Table 34 on page 94 provides drive specifications for FlashSystem 5100 SAS expansion enclosures.
All drives are dual-port and hot-swappable. Drives of the same form factor and connector type can be
intermixed within an enclosure.
Table 34. Drive specifications
Model and type
2077/2078-12G,
2077/2078-24G, or
2077/2078-AFG
2077-92G, 2077-A9G
2078-92G, 2078-A9G
Acoustical specifications for FlashSystem 5100 SAS expansion enclosures
The following table provides the acoustical specifications for the 2077/2078-24G or 2077/2078-AFG SAS
expansion enclosures.
Table 35. Acoustical specifications for 2077/2078-24G or 2077/2078-AFG SAS expansion enclosures
Model and type
2077/2078-24G or 2077/2078-
AFG
The noise emission level that is stated is the declared (upper limit) sound power level, in decibels, for a
random sample of machines. All measurements are made in accordance with ISO 7779 and reported in
conformance with ISO 9296.
94 FlashSystem 5100 : Quick Installation Guide for MTM 2078-4F4, 2078-4H4, 2078-12G, 2078-AFG,
2078-24G, 2078-A9G, 2078-92G, and 2078-UHB
Minimum rail length
595 mm (23.4 in.)
680 mm (26.8 in.)
Space requirements
50 mm (2 in.)
Minimum: 100 mm (4 in.) This space is not needed for
5U expansion enclosure models.
3.5-inch drives
-
N/A
Acoustical output per enclosure
Less than 6.3 B LwA -- Operating (40% Average seek rate) @ 23°C
ambient
Maximum rail depth
795 mm (31.3 in.)
800 mm ( 31.5 in.)
2.5-inch drives
• 2.5" Flash Drive 200 GB, 400 GB, 800 GB, 1.6 TB
• 2.5" 15 K RPM HDD 300 GB, 600 GB
• 2.5" 10K RPM HDD 600 GB, 900 GB, 1.2 TB, 1.8 TB,
2.4 TB
• 2.5" 7.2 K RPM HDD 2 TB
• 2.5" Flash Drive 1.6 TB, 1.92 TB, 3.2 TB, 3.84 TB,
7.68 TB, 15.36 TB
Reason
Cooling air flow
Cable exit

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