• Contact
  • Cookie Policy
Techspark Blogging about technical stuff

Monthly Archives: September 2021

You are browsing the site archives by month.

Synology iSCSI/LUN SSD Cache with DSM 7.0

September 28, 2021 2:31 PM / Leave a Comment / Administrator

UPDATE: Seems to be gone with ‘Flashcache Version : flashcache-1.0-2021-10-18-20:42’ on 7.0.1. 🙁

With DSM 7.0 Synology removed the feature of accelerating Block-Level LUNs. This is an interesting feature for iSCSI LUNs used for Hypervisors like VMware ESX.

Synology DSM 7.0 Release Notes:

- Creating SSD caches on block-level LUNs is no longer supported. Existing SSD caches for block LUNs will function normally after the update.

However this is valid but you can re-enable acceleration for Block-Level iSCSI LUNs.

Logon to your Synology NAS via SSH and get the root shell via “sudo -i”. Execute the following command to re-enable the cache.

/var/packages/ScsiTarget/target/bin/synoiscsihook --flashcache_enable

This works as long as you’re not rebooting. You can create a task within DSM with trigger at “Boot-Up” to execute this command line to enable the Cache again.

Keep in mind this will probably shred your SSD.

Posted in: ESXi, Synology, VMWare / Tagged: Synology, VMWare

Recent Posts

  • Synology iSCSI/LUN SSD Cache with DSM 7.0
  • Install EWSManagedAPI NuGet (GitHub) for SharePoint 2013/2016/2019
  • open-vm-tools: Unknown ioctl 1976
  • Synology Virtual Machine Manager increase vDisk Limit
  • Error while trying to Access “Details” of a SharePoint App

Recent Comments

  • XeroX on Synology Virtual Machine Manager increase vDisk Limit
  • Rogerio Silva on Synology Virtual Machine Manager increase vDisk Limit
  • Mark on open-vm-tools: Unknown ioctl 1976
  • Dom on open-vm-tools: Unknown ioctl 1976
  • SLATES361 on open-vm-tools: Unknown ioctl 1976

Archives

  • September 2021
  • August 2021
  • November 2020
  • November 2015
  • June 2015
  • February 2015
  • August 2014
  • June 2014
  • February 2014
  • January 2014
  • November 2013
  • September 2013
  • August 2013

Categories

  • ESXi
  • FreeBSD
  • Hardware
  • Hyper-V
  • iOS
  • Microsoft
  • OfficeWebApps
  • Operations Manager
  • SharePoint
  • Synology
  • vCenter
  • VMWare
  • Webserver
  • Windows Server
© Copyright 2022 - Techspark
Infinity Theme by DesignCoral / WordPress
This website uses Cookies and Matomo to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Reject Opt-Out
Cookies Policy

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Functional
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytics
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
Others
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
CookieDurationDescription
_pk_id.1.03ee1 year 27 daysNo description
_pk_ses.1.03ee30 minutesNo description
cookielawinfo-checkbox-functional1 yearThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
SAVE & ACCEPT
Powered by CookieYes Logo