PowerRC's Blog

Posted by:
PowerRC

该同志还没添加个人介绍

5,727

OpenWRT x86 r43166 Highmem SMP

This time , I compiled with a stable version of Openwrt (Barrier Breaker) , instead of develop trunk version .

1

2

3

Similar to last time:

1.Supports memory over 4G .
2.Supports SMP , mulit-cores , HyperThreading up to 8 logical cores.
3.All default options of compiling , and I turn o[……]

Read more

Posted by:
PowerRC

该同志还没添加个人介绍

1,255

Fremont Central Park

Such a good weather today
_MG_3696

_MG_3707

_MG_3715[……]

Read more

Posted by:
PowerRC

该同志还没添加个人介绍

8,179

install lsi MegaRAID Storage Manager (MSM) on CentOS 6.x (server side)

It’s pretty easy though , I want to keep this as a log.
system=> centos 6.x minimal installation
card=> lsi 9211-8i
msm version=> 14.05.02.00_Linux_x64_MSM

1.Prepare packages


1
2
for version lower than centos 6.5 use this command to install
#yum install net-snmpd csh net-snmpd-utils[......]<p class="read-more"><a href="https://www.powerrc.net/install-lsi-megaraid-storage-manager-msm-centos.html">Read more</a></p>

Posted by:
PowerRC

该同志还没添加个人介绍

1,192

to move yesterday’s files into a new folder in freebsd/unix

After googling a lot , I think I should share this script.
The purpose of this script is , to move yesterday ‘s files , into a new folder , which is named by date.
But due to the some difference between linux and freebsd/unix.
The parameters of date ,”-d” can’t be used in linux ; and The paramet[……]

Read more

Posted by:
PowerRC

该同志还没添加个人介绍

1,458

Another jbod box : supermico 847E26_RJBOD

In order to build a storage server , I just played around with a jbod box : supermicro 847E26_RJBOD . 847E16 is similar , just 2 ports less.
From amazon , it’s about $2000 , not bad.

Basic spec: 4u , 45 bays for 3.5 inch HDs , 4 sas ports , 1200w redundant power supply.

This is the front pane[……]

Read more

Posted by:
PowerRC

该同志还没添加个人介绍

1,147

A bash script to part and format HDs in quantity

I need to test a JBOD box today with 45 harddrives , obviously I am not going to part and format these harddrive one by one , so I write a script.

What this script would do:
1.Using GPT to label/relabel the HD.
2.Parting the whole drive into one partition.
3.Formatting the partition into Xfs.[……]

Read more

Posted by:
PowerRC

该同志还没添加个人介绍

2,968

[PHP] how to get holidays of USA with google calendar api

Before I post this blog , I did search around for this function.
I still prefer a simple one , that’s why I would like to share with you.
Basically , I was using google calenda’s api.
But I am using the public feed , so I don’t need to register so called google api developer account.


1
public[......]<p class="read-more"><a href="https://www.powerrc.net/php-get-holidays-usa-google-calendar-api.html">Read more</a></p>

Posted by:
PowerRC

该同志还没添加个人介绍

6,979

[X86]OpenWRT for SMP and 4G ram R41553

I compiled an openwrt x86 build again today, which version is r41553 , pretty new.

My hardware summary: Celeron 1037u (Ivy bridge) dual cores , and 4g ram , AR9280 wifi card , dual realtek 8168 1000mbps nics.

In order to fit different situations , I compiled 2 versions:
1.sda version. Would f[……]

Read more

Posted by:
PowerRC

该同志还没添加个人介绍

1,233

Chicago once more

The weather was pretty bad , last time when I went to chicago.
Today we get a good weather 😀

Michigan Lake
Looks like sea

Chicago Skyline

Chicago Building 1

Chicago Canal

Chicago Building 2

Art institute of Chicago

Cloud Gate 2

Chicago Chinatown
[……]

Read more

Posted by:
PowerRC

该同志还没添加个人介绍

1,110

Places I went

The Great Wall @ Beijing
长城

Cloud Gate @ Chicago
cloud gate @chicago

Route#1 @ California
Route #1 @ California

Yosemite @ California
Yosemite @ California

The Arc @ St.Louis
The Arc @ St.Louis

Firewoks @ Cincinnati
Firewoks @ Cincinnati

Central Canal @ Indianapolis
Central Canal @ Indianapolis

Golden Bridge @ Sanfrancisco
Golden Bridge @ San Francisco[……]

Read more

back up ↑