Monthly Archives: September 2016

ZFS internals by Leal

These ten wonderful posts from Leal’s blog will teach you how to deal with not only ZFS internals 🙂 Thanks to Stoyan Stoyanov for pointing it to me.

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Hitachi Tuning Manager Agents cheat sheet

A bit outdated yet very useful cheat sheet for Hitachi Tuning Manager agents configuration. Also the whole site is amazing source of UNIX and Storage articles. Note: the texts are primarily in Russian language. Source: HDS Tuning manager agents – напоминалки | Unix pin

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“Using SSD as the Level Two Cache for the FreeBSD Dual-Controller Storage Array” in the fresh BSD Mag issue

“Nowadays storage systems use fast solid-state drives (SSD) not only for storing data volumes, but even as the second layer of cache. In ZFS this feature is implemented by L2ARC and it means that we can easily enable this feature … Continue reading

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Quick check for Command Devices mapped from Hitachi arrays

In CCI, under HORCM/etc run: raidscan -x findcmddev 0-100 If Tuning Manager Agents are installed: INSTALLATION-PATH/jp1pc/tools/jpctdlistraid In MS Windows it’s better to specify Command devices like \\.\CMD-12345 instead of \\.\PhysicalDriveX where possible to avoid occasional drive mix after reboot. UPDATE … Continue reading

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Division by zero: What’s happen if you do it on mechanical calculator?

The normal process of division is performed by simple sequential substation. So dividing 6 by 2 is: 6 – 2 = 4 4 – 2 = 2 2 – 2 = 0 And the answer is 3. But when you … Continue reading

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Hitachi Tuning Manager Agents installation funny messages

Nothing serious, just agent installation procedure. And do you always notice all that small remarks of default setup wizards? 😉

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Почему мой телефон не обновится до нового андроеда? – Official Russian – Medium

То, что вы всегда подозревали, но боялись сказать вслух про телефоны с Android 🙂 “Андроед-телефоны, как и все вещи в 2016 году, собираются из каких-то *баных микросхем. У вас могло сложиться ошибочное мнение, что работу …” Источник: Почему мой телефон … Continue reading

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