Questions tagged [enhanceio]

EnhanceIO™ SSD Cache Software from STEC is designed to help the user easily create, configure and analyze cached environments with cost-effective scalability using solid-state drives (SSDs).

EnhanceIO™ SSD Cache Software from STEC is designed to help the user easily create, configure and analyze cached environments with cost-effective scalability using solid-state drives (SSDs). While IT organizations have embraced the benefits of solid-state technology, many server environments cannot afford to replace all of their hard disk drives (HDDs) with SSDs to increase performance and scalability.

For these enterprise server environments, EnhanceIO is a solution that runs beneath the application layer, enabling applications to utilize the performance benefits of SSDs without major IT infrastructure changes.

Source:Stec Inc.

6 questions
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What are the advantages/disadvantages of different SSD to HDD cacheing options (dm-cache, flashcashe...)?

There appear to be various different technologies available to use an SSD to act as a cache for HHDs. The ones I know of: dm-cache (by Redhat - in the 3.9 Kernel, so it should be in ubuntu 13.10) Flashcache (developed and used by facebook) Bcache…
Uli
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Got a new SSD, don't want to wear it out but I still want to use some of it to store data files together with the old HDD

I bought a new 250GB Samsung 850 EVO SSD for my laptop that I want to use as primary storage device, together with the old but still functioning 250GB 7500 RPM HDD that I put in the former DVD bay with an adapter caddy. Right now the HDD has only…
Fabio A.
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How to remove a write-back EnhanceIO cache on root partition?

I accidentially created a write-back EnhanceIO cache for my root partition. I didn't know that Creating a writeback cache on root device is not supported. This is because the root device is mounted as read only prior to the processing of udev…
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EnhanceIO: Write-through vs Read-only

I have installed an EnhanceIO SSD cache on my notebook. EnhanceIO supports three caching modes: read-only, write-through, and write-back. Read-only caching mode causes EnhanceIO to direct write IO requests only to HDD. Read IO requests are…
warvariuc
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EnhanceIO persistent udev rules not firing on reboot - Ubuntu 14.04.3

Abstract : I've installed enhanceIO and enhanceio-dkms from the daily PPA at http://ppa.launchpad.net/enhanceio/daily/ubuntu/ giving version 0+git20130406-0~69~ubuntu14.04.1. Everything seems to be working well, except that the udev rules do not…
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Should I put /boot on SSD or HDD

I am running Lubuntu 14.04 64bit. I am planning to implement EnhanceIO to use my new 25GB SSD drive for caching my 4TB RAID 0 array. The raid array is partitioned as: 500MB /boot, 20GB /, 200GB /vmware, and 3.4TB /home. I understand there are…