Jun 9, 2017 - 6.6.4.5 Drive Firmware Download Commands. Maintain MegaRAID serial-attached SCSI (SAS) RAID controllers with RAID control.
19NM87CGLL5SDEWG34QMUJFBHSRVCN3TWIU9QGAZ Notes:. The key should only be used on non-production systems. Once enabled, even if the CacheCade volume is deleted and not used, after 30 days the data volume will be unaccessible unless the trial key is reentered (for 30 more days of eval) or CacheCade Pro 2.0 is purchased and a permanent key is entered. Information on MegaRAID. After 30 days, the CacheCade volume(s) and associated Virtual Drive(s) become foreign config, and will be inaccessible.
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You must use CacheCade compatible firmware and MegaRAID Storage Manager. Activating with MegaRAID Storage Manager Open MSM, click on Dashboard, then Manage MegaRAID Advanced Software Options Click the Activate button.
Enter in the Activation Key and click Next. The 30 day trial will start.
› › Hybrid SSD storage & LSI MegaRAID CacheCade Pro v2.0 Hybrid SSD storage & LSI MegaRAID CacheCade Pro v2.0 By on. ( ) UPDATE Over the last 6 years we’ve seen LSI be acquired by Avago which was then acquired by Broadcom but unfortunately we’ve not seen many innovations in hardware RAID.
I’d been hoping to see things like bit-rot correction and smart drive rebuilds come to market but it’s still not there and probably isn’t coming. At OSNEXUS we still use hardware RAID1 to mirror together the boot drives. That means using a board with a LSI 3108 chip either in an OEM add-on card or via an add-on card. Today, if you have a Cisco, Intel, Dell, Fujitsu, or a SuperMicro server, they all use the OEM versions of the LSI MegaRAID or LSI HBA chips (3008) and we’re seeing LSI standardize on the storcli utility for both rather than maintaining separate CLIs. HPE is the only hold-out with their own custom hardware RAID card but we see that too being phased out in the Gen10 servers for Adaptec derivative boards. As far as CacheCade is concerned, I think it’s usefulness has past. SSD is cheap so why bother accelerating HDDs when one can build the whole array out of SSDs for not much more and much higher performance.
With the 94xx series Broadcom is jumping into the NVMe space (connect 4x per card) which is great and these tri-mode cards can act as a HW RAID adapter, or HBA, or NVMe adapter all-in-one. That’s a great way to go and consolidates and simplifies the product line for Broadcom. Hardware RAID is going to be around for some time to come but don’t look to it for great innovations, for that, keep your eye on the software side with technologies like ZFS and Ceph. ORIGINAL ARTICLE If you haven’t heard of CacheCade it’s a hybrid SSD caching technology from LSI for the MegaRAID Series (9260/9280/9266/9286/9265/9285) RAID controllers that greatly accelerates the performance (IOPS) of SATA/SAS RAID arrays by layering in a SSD based read/write cache layer. This hybrid blending of traditional HDDs with SSDs is can boost performance for some applications such as server visualization, video editing, and databases by upwards of 12x or more.
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Here’s a chart from an that shows how performance increases and latency decreases with the SSD caching layer: The trick to make SSD caching effective is to design a hybrid cache so that it can utilize the SSD as much as possible so that you’re not slowed by the mechanical latencies associated with the HDDs, yet at the same time take advantage of the high sequential performance of large RAID arrays. LSI designed that intelligence into CacheCade so that hot spots for reads in HDDs arrays are cached in SSD and random writes are written to SSD storage first so that they can be lazily written out to the HDD in an optimized fashion. (Of course for writes to be cached you must have two or four SSD drives in a CacheCade 2.0 mirrored volume so in case of an SSD drive failure there’s no data loss. Side note, CacheCade 1.0 did only read caching) For an indepth performance analysis here’s an interesting that goes into performance metrics.
On to the details of deploying CacheCade on your Linux server. We use Ubuntu Server as the underlying OS with our QuantaStor storage appliance software so I’m going to share with you a Linux perspective of how to get your server configured with CacheCade Pro 2.0. Note, you’ll want to do the following commands as root, so if you’re on a Ubuntu system be sure to do this first: sudo -i Also note that the following steps will require some packages to be installed and here’s how to do that on Ubuntu: apt-get install alien gcc dkms wget First step, upgrade the firmware.