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PERC H755N

Controller

Dell option (no published part number)

Supported storage controller cards: PERC H755N

Verified in 1 active model(s): Dell PowerEdge R760

Description

RAID controller with cache

A RAID controller with dedicated cache memory that buffers write operations and, with battery or supercapacitor protection, preserves the cached data on power loss.

For RAID 5, 6, 50 and 60 arrays and write-heavy workloads, write-back caching greatly increases performance.

Higher write performance, faster array rebuilds and features such as encryption and SSD caching.

This text is the general explanation of this category of part (not a claim about one specific model).

Compatibility map

The relations of this part with other parts, from the audited QuickSpecs rules and the compatibility graph only (every line with its official source).

PERC H755NR1B+R2A8 x 2.5" (NVMe RAID)16 x 2.5" (NVMe RAID) Smart FlowNO RSRR1B+R2A+R3B+R4BR1Q+R2A+R3B+R4Q

Click a part or a relation line (or press Enter) to pin its explanation and source; Esc releases it. Drag to pan the map or use the arrow keys; zoom with the buttons, the + and − keys or Ctrl with the mouse wheel.

Hover or click a part or a relation to show its recorded rule and official source.

  • Incompatible: PERC H755N and R1B+R2A are incompatible. Riser configuration 8 supports the PERC Adapter only, while this storage configuration's cable tables use front PERCs (fPERC) only.
  • Requires: 8 x 2.5" (NVMe RAID) requires PERC H755N. Per Dell's cable-routing tables this storage configuration needs one of: PERC H755N, PERC H965i.
  • Requires: 16 x 2.5" (NVMe RAID) Smart Flow requires PERC H755N. Per Dell's cable-routing tables this storage configuration needs one of: PERC H755N, PERC H965i.
  • Requires: 16 x 2.5" (NVMe RAID) Smart Flow requires PERC H755N. 16 x 2.5-inch NVMe RAID: two 8-bay NVMe backplanes, each with its own front PERC - per Dell's cable-routing tables two H755N or H965i controllers are needed.
  • Requires: PERC H755N requires NO RSR. The allowed number and position of storage controllers (front PERC / PERC Adapter) depend on the riser configuration: select it (or configuration 0 'NO RSR').
  • Requires: PERC H755N requires R1B+R2A+R3B+R4B. The allowed number and position of storage controllers (front PERC / PERC Adapter) depend on the riser configuration: select it (or configuration 0 'NO RSR').
  • Requires: PERC H755N requires R1Q+R2A+R3B+R4Q. The allowed number and position of storage controllers (front PERC / PERC Adapter) depend on the riser configuration: select it (or configuration 0 'NO RSR').

Active models in which this part is listed

Dell PowerEdge R760

step «Storage controllers»Add to this model's configuration

Related rules (16)

  • RequirementThis part can satisfy the requirement of the rule

    Per Dell's cable-routing tables this storage configuration needs one of: PERC H755N, PERC H965i.

    Parts on the other side: 8 x 2.5" (NVMe RAID)16 x 2.5" (NVMe RAID) Smart Flow

    Source: dell-r760-ism — page 160
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 160View documentSearch this document
    Table 98. 8 x 2.5-inch NVMe RAID with fPERC (H755N)
    Source: dell-r760-ism — page 161
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 161View documentSearch this document
    Table 99. 8 x 2.5-inch NVMe RAID with fPERC (H965i)
  • RequirementThis part can satisfy the requirement of the rule

    16 x 2.5-inch NVMe RAID: two 8-bay NVMe backplanes, each with its own front PERC - per Dell's cable-routing tables two H755N or H965i controllers are needed.

    Parts on the other side: 16 x 2.5" (NVMe RAID) Smart Flow

    Source: dell-r760-ism — page 163
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 163View documentSearch this document
    Table 101. 16 x 2.5-inch NVMe RAID with fPERC (H755N)
    Source: dell-r760-ism — page 163
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 163View documentSearch this document
    1 SL1_CPU2_PA1 (signal connector on system board) CTRL_DST_PA1 (fPERC input connector)
  • No mixingThe rule limits this part

    16 x 2.5-inch NVMe RAID: Dell's cable-routing tables show only a matching pair (two H755N or two H965i); a mixed H755N + H965i pair is not documented.

    Source: dell-r760-ism — page 163
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 163View documentSearch this document
    Table 101. 16 x 2.5-inch NVMe RAID with fPERC (H755N)
    Source: dell-r760-ism — page 165
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 165View documentSearch this document
    Table 103. 16 x 2.5-inch NVMe RAID with fPERC (H965i)
  • Maximum quantityThe rule limits this part

    At most two internal storage controllers: Dell's cable-routing configurations use at most two (dual-controller configurations).

    Source: dell-r760-ism — page 177
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 177View documentSearch this document
    Table 116. 24 x 2.5-inch SAS/SATA dual controller with fPERC (H965i) and APERC in Riser 2
    Source: dell-r760-ism — page 199
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 199View documentSearch this document
    Table 138. 16 x EDSFF E3.S NVMe with dual fPERC (H965i)
  • Maximum quantityThe rule limits this part

    Dell's cable-routing tables for this storage configuration route one front PERC (fPERC) only: at most one internal storage controller (two only on the dual-controller and 16 x 2.5-inch NVMe RAID configurations).

    Source: dell-r760-ism — page 181
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 181View documentSearch this document
    Table 120. 24 x 2.5-inch SAS/SATA with fPERC (HBA355i, H355, H755)
    Source: dell-r760-ism — page 172
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 172View documentSearch this document
    Table 111. 24 x 2.5-inch SAS/SATA with fPERC (H965i)
  • IncompatibilityThis part is one side of an incompatibility

    Riser configuration 8 supports the PERC Adapter only, while this storage configuration's cable tables use front PERCs (fPERC) only.

    Parts on the other side: R1B+R2A

    Source: dell-r760-tg — page 34
    Dell PowerEdge R760 Technical Guide
    “dell-r760-tg” — page 34View documentSearch this document
    Table 14. PCIe Riser Configurations Config No. Riser configuration No. of Processors PERC type supported Rear storage possible
    Source: dell-r760-tg — page 35
    Dell PowerEdge R760 Technical Guide
    “dell-r760-tg” — page 35View documentSearch this document
    8 R1B+R2A 1 PERC Adapter No
  • Maximum quantityThe rule limits this part

    These cards are not listed in the card table of riser configuration 6 (R2A+R4Q) in Dell's ISM and are not supported with it.

    Source: dell-r760-ism — page 278
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 278View documentSearch this document
    Table 162. Configuration 6: R2A+R4Q
    Source: dell-r760-ism — page 278
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 278View documentSearch this document
    Card type Slot priority Maximum number of cards
  • Maximum quantityThe rule limits this part

    These cards are not listed in the card table of riser configuration 7/12 (R1Q+R2A+R4Q) in Dell's ISM and are not supported with it.

    Source: dell-r760-ism — page 280
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 280View documentSearch this document
    Table 163. Configuration 7: R1Q+R2A+R4Q
    Source: dell-r760-ism — page 280
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 280View documentSearch this document
    Card type Slot priority Maximum number of cards
  • Maximum quantityThe rule limits this part

    These cards are not listed in the card table of riser configuration 8 (R1B+R2A) in Dell's ISM and are not supported with it.

    Source: dell-r760-ism — page 282
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 282View documentSearch this document
    Table 164. Configuration 8: R1B+R2A
    Source: dell-r760-ism — page 282
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 282View documentSearch this document
    Card type Slot priority Maximum number of cards
  • Maximum quantityThe rule limits this part

    These cards are not listed in the card table of riser configuration 11 (R1 Paddle + R2A + R3B + R4 Paddle) in Dell's ISM and are not supported with it.

    Source: dell-r760-ism — page 291
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 291View documentSearch this document
    Table 168. Configuration 11: R1 paddle+R2A+R3B+R4 paddle
    Source: dell-r760-ism — page 291
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 291View documentSearch this document
    Card type Slot priority Maximum number of cards
  • Maximum quantityThe rule limits this part

    With the selected riser configuration Dell's card tables allow at most 1 x PERC H755N.

    Source: dell-r760-ism — page 284
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 284View documentSearch this document
    Foxconn (Front PERC11 H755N) Integrated slot 1
    Source: dell-r760-ism — page 286
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 286View documentSearch this document
    Foxconn (Front PERC11 H755N) Integrated slot 1
  • RequirementThis part is the condition of the rule

    The allowed number and position of storage controllers (front PERC / PERC Adapter) depend on the riser configuration: select it (or configuration 0 'NO RSR').

    Source: dell-r760-tg — page 34
    Dell PowerEdge R760 Technical Guide
    “dell-r760-tg” — page 34View documentSearch this document
    Table 14. PCIe Riser Configurations Config No. Riser configuration No. of Processors PERC type supported Rear storage possible
    Source: dell-r760-ism — page 256
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 256View documentSearch this document
    Table 153. Expansion card riser configurations
  • Maximum quantityThe rule limits this part

    Front + adapter dual-controller base: with riser configuration 8, 10-1, 10-2 slot cards + internal controllers <= 4 (3 slots + the front PERC's integrated slot).

    Source: dell-r760-ism — page 256
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 256View documentSearch this document
    Table 153. Expansion card riser configurations
    Source: dell-r760-ism — page 256
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 256View documentSearch this document
    Configurations Expansion card risers PCIe Slots Form factor Controlling processor
  • Maximum quantityThe rule limits this part

    Front + adapter dual-controller base: with riser configuration 6, 9, 11 slot cards + internal controllers <= 5 (4 slots + the front PERC's integrated slot).

    Source: dell-r760-ism — page 256
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 256View documentSearch this document
    Table 153. Expansion card riser configurations
    Source: dell-r760-ism — page 256
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 256View documentSearch this document
    Configurations Expansion card risers PCIe Slots Form factor Controlling processor
  • Maximum quantityThe rule limits this part

    Front + adapter dual-controller base: with riser configuration 3-1, 3-2, 4-1, 5-1, 5-2, 7/12 slot cards + internal controllers <= 7 (6 slots + the front PERC's integrated slot).

    Source: dell-r760-ism — page 256
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 256View documentSearch this document
    Table 153. Expansion card riser configurations
    Source: dell-r760-ism — page 256
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 256View documentSearch this document
    Configurations Expansion card risers PCIe Slots Form factor Controlling processor
  • Maximum quantityThe rule limits this part

    Front + adapter dual-controller base: with riser configuration 1, 2 slot cards + internal controllers <= 9 (8 slots + the front PERC's integrated slot).

    Source: dell-r760-ism — page 256
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 256View documentSearch this document
    Table 153. Expansion card riser configurations
    Source: dell-r760-ism — page 256
    Dell PowerEdge R760 Installation and Service Manual
    “dell-r760-ism” — page 256View documentSearch this document
    Configurations Expansion card risers PCIe Slots Form factor Controlling processor

Verification and sources

Verified against this option's row in Dell's official documents; Dell publishes no part number for it - the orderable SKU and price come from a Dell quote.

Document row: dell-r760-ism — page 41
Dell PowerEdge R760 Installation and Service Manual
“dell-r760-ism” — page 41View documentSearch this document
PERC H755N

This page contains only the audited data of the official vendor documents (HPE, Lenovo, Dell) for the active models. Price and availability are given through the quote request in the configurator.