The Dell GR155 PERC 5/i is a RAID controller designed for Dell PowerEdge servers. It is a PCI-Express SAS controller that is designed to support high-performance storage systems. The GR155 comes with 256MB of cache and does not require a battery to operate. In this article, we will provide a detailed explanation of the Dell GR155 PERC 5/i controller and its features.
What is a RAID controllerRAID stands for Redundant Array of Independent Disks. A RAID controller is a device that manages the data storage in a RAID system. A RAID system is a way of storing data across multiple hard drives to provide redundancy, performance, and capacity benefits. The RAID controller manages the data across the hard drives, making sure that data is written and read correctly and efficiently.
What is a PCI-Express SAS controllerThe Dell GR155 PERC 5/i is a PCI-Express SAS controller. PCI-Express is a high-speed serial computer expansion bus standard that allows for faster data transfer rates between devices. SAS stands for Serial Attached SCSI, which is a type of interface used for connecting hard drives and other storage devices to a computer. SAS provides higher data transfer rates than other storage interfaces like SATA.
What are the features of the Dell GR155 PERC 5/iThe Dell GR155 PERC 5/i controller has several features that make it a popular choice for high-performance storage systems. Some of these features include:
- 256MB cache: The GR155 comes with 256MB of cache, which helps improve the performance of the storage system.
- No battery required: Unlike many other RAID controllers, the GR155 does not require a battery to operate. This helps reduce maintenance costs and makes it easier to manage the system.
- RAID levels supported: The GR155 supports several RAID levels, including RAID 0, RAID 1, RAID 5, RAID 10, and RAID 50. These RAID levels provide different levels of data redundancy and performance benefits.
- SAS support: The GR155 supports SAS hard drives, which provide faster data transfer rates than SATA drives.
- Hot-swappable drives: The GR155 supports hot-swappable hard drives, which allows for easy replacement of failed drives without shutting down the system.
- Remote management: The GR155 can be managed remotely using Dell OpenManage software. This allows for easy configuration and monitoring of the storage system.
The Dell GR155 PERC 5/i is a popular choice for high-performance storage systems. It offers several features that make it stand out from other RAID controllers. For example, the 256MB cache and SAS support provide improved performance compared to other controllers that do not support these features. Additionally, the lack of a battery requirement helps reduce maintenance costs and makes it easier to manage the system.
However, there are some limitations to the GR155. For example, it does not support RAID 6, which is a more advanced level of data redundancy than RAID 5. Additionally, the lack of a battery may be a disadvantage for some users who prefer the added security of having a backup power source for the cache.
In Summary, the Dell GR155 PERC 5/i is a high-performance RAID controller designed for use in Dell PowerEdge servers. It supports several RAID levels, SAS hard drives, and hot-swappable drives. The 256MB cache provides improved performance, and the lack of a battery requirement helps reduce maintenance costs. While the GR155 may not be the best choice for all storage systems, it is a popular choice for many high-performance applications.
Main Information about the Dell GR155- Manufacturer: Dell
- Part Number or SKU# GR155
- Product Type: SAS Controller
- Category : DELL Controller
- Sub-category : Raid Controller
- Generation : PCI Express
- Device Type : Storage Controller (raid) - Plug-in Card
- Interface Support : 3GBPS SAS
- Sas Connections : 2x4 Internal
- Battery : Not Included
- Compatible Slots : PCI Express X8
- Cache Memory : 256MB
- Raid Level : Raid 0 1 5 10 50
- Raid Support : Hardware Raid
Contact us or ask for live chat/help if you have any questions about the compatibility of this item to ensure the model's matching features with your current system.
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