CN204203855U - Novel external SAS12G RAID storage card - Google Patents

Abstract

The utility model particularly relates to a novel external SAS 12G RAID memory card. The new external SAS 12G RAID memory card includes a memory card board, the memory card board is provided with a SAS main control chip, an external SAS port and a supercapacitor module interface, and the front end of the memory card board is provided with a chassis fixing block A PCIE interface is connected to the bottom of the memory card. The new external SAS 12G RAID memory card adopts SFF-8644 Mini-SAS HD interface, which is suitable for the interconnection of SAS modules inside the storage host; it supports SAS12G SSD and HDD at the same time, and realizes the data conversion between PCIE and SAS protocols; it can also pass The Raid algorithm realizes data backup protection; in addition, the utility model adopts the super capacitor method, which can achieve high-efficiency and long-term storage of data, which is beneficial to the protection of cached data; and supports a large disk array, and the maximum number of RAID disks supports 256.

Description

A new type of external SAS 12G RAID memory card

technical field

The utility model relates to the technical field of server data storage equipment, in particular to a novel external SAS 12G RAID memory card.

Background technique

With the rapid development of computer technology, the importance of various information data is becoming more and more obvious. Data storage protection is one of the technologies prioritized by server manufacturers. Data storage protection is mainly implemented by backing up the data on the current disk with various algorithms to prevent sudden disk damage, or data inaccessibility due to various other reasons, or part of the data has been damaged. The backed up data can be restored to the production disk in the first time after the data fails, so as to minimize the loss to the greatest extent.

RAID (Redundant Array of Independent Disks) is a redundant array of independent disks, which is the main technology for data storage backup. RAID technology combines multiple individual physical disks into a logical disk in different ways, thereby improving the read-write performance and data security of the disk. According to different algorithms, it can be divided into different RAID levels: Raid0/1/2/3/4/5/6. At the same time, two different RAID methods can be combined into a new RAID level, such as Raid10/50/60, in order to meet the needs of disk capacity, data redundancy, or storage system performance. According to the above technology, the utility model designs an external SAS 12G RAID memory card, which has the advantages of good compatibility and fast data transmission.

FCI's Mini-SAS HD products are fully compliant with SFF-8644 (for internal applications) and SFF-8644 (for external applications) industry specifications. Available internal and external board connection types include 1x1 (4x), 1 x 2 (8x) and 1 x 4 (16x) configurations, providing end customers with choice and design flexibility.

Contents of the invention

In order to make up for the defects of the prior art, the utility model provides a novel external SAS 12G RAID memory card that can be easily loaded and unloaded.

The utility model is achieved through the following technical solutions:

A new type of external SAS 12G RAID memory card is characterized in that: it includes a memory card board, the memory card board is provided with a SAS main control chip, an external SAS port and a supercapacitor module interface, and the front end of the memory card board There is a fixed bracket for the chassis, and a PCIE interface is connected to the bottom of the memory card board; the external SAS port is located at the front end of the memory card board.

The SAS main control chip is the SAS RoC chip PMC PM8060.

The external SAS port is an external 1x2 SFF-8644 connector, which is a Mini-SAS HD interface and supports 8 SAS/SATA devices.

The PCIE interface is PCIE Gen3 x8, using golden finger method.

Its RAID levels are RAID 0, 1, 10, 1E, 5, 6, 50, 60.

It supports up to 256 RAID disks.

The beneficial effects of the utility model are: the new external SAS 12G RAID memory card adopts the SFF-8644 Mini-SAS HD interface, which is suitable for the interconnection of SAS modules inside the storage host; it supports SAS12G SSD and HDD at the same time, and realizes the PCIE and SAS protocol Data conversion between data; data backup protection can also be realized through the Raid algorithm; in addition, the utility model adopts a super capacitor method, which can achieve high-efficiency and long-term storage of data, which is beneficial to the protection of cached data; and supports large disk arrays, RAID disks The maximum number supported is 256.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Accompanying drawing 1 is the structural representation of the utility model;

In the figure, 1. Memory card board, 2. SAS main control chip, 3. External SAS port, 4. PCIE interface, 5. Supercapacitor module interface, 6. Chassis fixing bracket.

Detailed ways

Accompanying drawing is a kind of concrete embodiment of the utility model. The new external SAS 12G RAID memory card includes a memory card board 1, the memory card board 1 is provided with a SAS main control chip 2, an external SAS port 3 and a supercapacitor module interface 5, and the memory card board 1 The front end is provided with a chassis fixing bracket 6, and the PCIE interface 4 is connected to the bottom of the memory card board 1; the external SAS port 3 is located at the front end of the memory card board 1.

The SAS main control chip 2 is a SAS RoC chip PMC PM8060.

The external SAS port 3 is an external 1x2 SFF-8644 connector, which is a Mini-SAS HD interface and supports 8 SAS/SATA devices. Support SAS 12Gb/s & SATA 6 Gb/s, and backward compatible. Support SSD, HDD, Tape Devices with SAS and SATA interfaces.

Described PCIE interface 4 is PCIE Gen3 x8, adopts golden finger mode.

The supercapacitor module interface 5 supports a supercapacitor solution, which can realize cache data protection.

Its RAID levels are RAID 0, 1, 10, 1E, 5, 6, 50, 60.

It supports up to 256 RAID disks.

When assembling the chassis, insert the PCIE interface 4 into the PCIE slot of the server motherboard, and fix it with the server chassis through the chassis fixing bracket 6 . Connect to the disk array of the server through the external SAS port 3 with a cable. The super capacitor module interface 5 is connected to the server super capacitor module.

The server performs a Raid algorithm, such as Raid5, on the disk array connected to the external SAS port 3 through the memory card board 1.

The server writes data to the disk, and the server data will pass the PCIE format signal code to the memory card board 1 through the PCIE interface 4, and the data will be Raid algorithm in the SAS main control chip 2, and converted into a SAS format signal code, through the external Set SAS port 3 to transfer to disk. Usually there are many disks and the writing speed is slow, then the data will be temporarily stored in the DDR cache of the memory card board 1, and written when the disks are free. The server reads data from the disk in the opposite direction. At this time, DDR cache is generally not required to participate.

Claims (6)

1. A new type of external SAS 12G RAID memory card, characterized in that it includes a memory card board (1), the memory card board (1) is provided with a SAS main control chip (2), and an external SAS port (3) and the supercapacitor module interface (5), the front end of the memory card board (1) is provided with a chassis fixing bracket (6), and the bottom of the memory card board (1) is connected to a PCIE interface (4); the external The SAS port (3) is located at the front of the memory card board (1). 2. The new external SAS 12G RAID memory card according to claim 1, characterized in that: the SAS main control chip (2) is a SAS RoC chip PMC PM8060. 3. The new external SAS 12G RAID memory card according to claim 1, characterized in that: the external SAS port (3) is an external 1x2 SFF-8644 connector, which is a Mini-SAS HD interface, Support 8 SAS/SATA devices. 4. The new external SAS 12G RAID memory card according to claim 1, characterized in that: the PCIE interface (4) is PCIE Gen3 x8, using a gold finger method. 5. The new external SAS 12G RAID memory card according to claim 1, characterized in that: its RAID level is RAID 0, 1, 10, 1E, 5, 6, 50, 60. 6. The new external SAS 12G RAID memory card according to claim 1, characterized in that: the number of RAID disks supports at most 256.