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Learn about the main features of the 5888 and EDR1 PCI Express (PCIe) storage enclosures.
| Feature code | 5888 | EDR1 |
|---|---|---|
| Description | IBM® EXP30 Ultra solid-state drive (SSD) I/O drawer | IBM EXP30 Ultra solid-state drive (SSD) I/O drawer |
| System connection | GX++ PCIe2 x8 | GX++ PCIe2 x8 |
| Systems supported | 8202-E4C, 8205-E6C, 8231-E1C, or 8231-E2C | 8202-E4D, 8205-E6D, 8231-E1D, 8231-E2D, 8246-L2T, 8248-L4T, 8268-E1D, 8408-E8D, 8412-EAD, 9109-RMD, 9117-MMC, 9117-MMD, 9179-MHC, and 9179-MHD |
| Operating systems supported1 | AIX®, Linux | AIX, IBM i, Linux |
| High availability (HA) two-system redundant array of independent disks (RAID) | Yes | Yes |
| HA single-system RAID | Yes | Yes |
| Requires HA RAID configuration | Yes | Yes |
| JBOD drives supported | No (requires drives that are formatted with 528 bytes/block) | No (requires drives that are formatted with 528 bytes/block) |
| Internal solid-state drive (SSD) type | 1.8-inch small form factor (SFF) 6 GB Dual Port serial-attached SCSI (SAS) SSD | 1.8-inch small form factor (SFF) 6 GB Dual Port serial-attached SCSI (SAS) SSD |
| SSD drive feature codes supported | ES02 | ES02 (AIX and Linux), ES04 (IBM i) |
| Internal SSD drives | Six minimum to 30 maximum | Six minimum to 30 maximum |
| External hard disk drives (HDD) | None | 48 maximum |
| External SAS enclosures | None | Two 5887 disk drive enclosures maximum |
| Drive redundant SAS paths | Two paths from each enclosure RAID module (ERM) (one path through each SAS expander) | Two paths from each enclosure RAID module (ERM) (one path through each SAS expander) |
| Drive concurrent maintenance | Yes | Yes |
| Enclosure RAID module (ERM) | PCIe2 3.1 GB cache RAID SAS enclosure 6 GB x8 | PCIe2 3.1 GB cache RAID SAS enclosure 6 GB x8 |
| ERM custom card identification number (CCIN) | 57C3 | 57C3 |
| ERM RAID levels | RAID 0, 5, 6, and 10 with hot spare for 5, 6, and 10 | RAID 0, 5, 6, and 10 with hot spare for 5, 6, and 10 |
| ERM write cache size | 3.1 GB | 3.1 GB |
| ERM external SAS links | None | Two mini SAS HD 4x connectors that contain three physical links each |
| ERM concurrent maintenance | No | Yes |
| ERM fan assembly | Two redundant fans per ERM | Two redundant fans per ERM |
| ERM fan concurrent maintenance | No | Yes |
| Redundant power supplies | Two | Two |
| Power supply concurrent maintenance | Yes | Yes |
| 1See Managing PCI adapters | ||
