SATA II and SAS RAID CARD ROUNDUP

LSI MegaRAID 8888ELP

Here is the second LSI MegaRAID card of the roundup.  The MegaRAID 8888ELP is also a low-profile card.  Unlike the 8708ELP, this product is in the "Feature" segment of the product line, featuring a slot for user-replaceable cache memory, and external connectors:

Manufacturer's specifications:

• 8 SAS/SATA compatible ports
• Two selectable SAS / SATA connectors
  • Two internal mini-SAS 4i connectors (8087)
  • Two external mini-SAS 4x connectors (8088)
• 3 Gb/s throughput per SAS / SATA port
• Fits PCI Express slot, x4 or x8
• 667Mhz DDRII cache (128MB)
• Optional battery backup module
  • Rated 72 hours
• Connect up to 16 intermixed SAS and SATA devices within the same array
• RAID levels 0, 1, 5 and 6
• RAID Spans 10, 50 and 60
• Auto-resume on array rebuild
• Auto resume array reconstruction
• Online Capacity Expansion (OCE)
• RAID Level Migration (RLM))
• Create 64 logical volumes
• Up to 64TB LUN support
• Comprehensive management tools
• LED fault indicator header
• Audible alarm circuit
• LSISAS1078 RAID on Chip
  • 500MHz PowerPC
  • Hardware RAID 5 & 6 engines

MegaRAID storage manager easily found the 8888ELP after the 8708ELP had been removed.  No problems here. 

Here are the benchmark results.  Again, we see poor write performance similar to the 8708ELP:

Hardware RAID-0, 8k Stripe, HD Tach 3.0 8MB Zones

Hardware RAID-0, 8k Stripe, HD Tach 3.0 32MB Zones

Hardware RAID-0, 8k Stripe, ATTO Mark

Hardware RAID-0, 1024k Stripe, HD Tach 3.0 8MB Zones

Hardware RAID-0, 1024k Stripe, HD Tach 3.0 32MB Zones

Hardware RAID-0, 1024k Stripe, ATTO Mark

Hardware RAID-1,  HD Tach 3.0 8MB Zones

Hardware RAID-1,  HD Tach 3.0 32MB Zones

Hardware RAID-1, ATTO Mark

Hardware RAID-5, 8k Stripe, HD Tach 3.0 8MB Zones

Hardware RAID-5, 8k Stripe, HD Tach 3.0 32MB Zones

Hardware RAID-5, 8k Stripe, ATTO Mark

Hardware RAID-5, 1024k Stripe, HD Tach 3.0 8MB Zones

Hardware RAID-5, 1024k Stripe, HD Tach 3.0 32MB Zones

Hardware RAID-5, 1024k Stripe, ATTO Mark

Hardware RAID-6, 8k Stripe, HD Tach 3.0 8MB Zones

Hardware RAID-6, 8k Stripe, HD Tach 3.0 32MB Zones

Hardware RAID-6, 8k Stripe, ATTO Mark

Hardware RAID-6, 1024k Stripe, HD Tach 3.0 8MB Zones

Hardware RAID-6, 1024k Stripe, HD Tach 3.0 32MB Zones

Hardware RAID-6, 1024k Stripe, ATTO Mark

Hardware RAID-10, 8k Stripe, HD Tach 3.0 8MB Zones

Hardware RAID-10, 8k Stripe, HD Tach 3.0 32MB Zones

Hardware RAID-10, 8k Stripe, ATTO Mark

Hardware RAID-10, 1024k Stripe, HD Tach 3.0 8MB Zones

Hardware RAID-10, 1024k Stripe, HD Tach 3.0 32MB Zones

Hardware RAID-10, 1024k Stripe, ATTO Mark

Hardware RAID-50, 8k Stripe, HD Tach 3.0 8MB Zones

Hardware RAID-50, 8k Stripe, HD Tach 3.0 32MB Zones

Hardware RAID-50, 8k Stripe, ATTO Mark

Hardware RAID-50, 1024k Stripe, HD Tach 3.0 8MB Zones

Hardware RAID-50, 1024k Stripe, HD Tach 3.0 32MB Zones

Hardware RAID-50, 1024k Stripe, ATTO Mark

Hardware RAID-60, 8k Stripe, HD Tach 3.0 8MB Zones

Hardware RAID-60, 8k Stripe, HD Tach 3.0 32MB Zones

Hardware RAID-60, 8k Stripe, ATTO Mark

Hardware RAID-60, 1024k Stripe, HD Tach 3.0 8MB Zones

Hardware RAID-60, 1024k Stripe, HD Tach 3.0 32MB Zones

Hardware RAID-60, 1024k Stripe, ATTO Mark

Software RAID-0, ATTO Mark