Wednesday, March 31, 2010
Gluster by Anand Babu
This is another open source project taken over by commercial enterprise
http://www.gluster.com/ - commercial
http://www.gluster.org/ - open source
This seems to be similar in relationship between memcached & northscale
Sunday, February 28, 2010
The 20 most promising companies in the cloud storage
The 20 most promising companies in the cloud storage
by ChannelWeb
23/02/2010
Check out the main suppliers of data storage on cloud computing, the segment of opportunities for the channel
Storage as a service is, for many channels, entering the world of cloud computing. The niche has all the benefits of cloud computing, including the use of shared infrastructure in other data centers to store data and integrate infrastructure into the cloud with the strategy of internal storage and backup. And like almost all customers are looking for better ways to store and backup data, there are many opportunities for suppliers in the industry. Check out the 20 most promising manufacturers of the segment and that can lead the partners to the cloud.
See also: The 20 companies most promising applications in the cloud
1) 3X Systems
The appliance for remote backup (RBA) of 3X Systems offers encrypted backup. The partners in implementing the RBA customers with technology that eliminates duplicate data whenever the information changes in computers and PCs are automatically RBA set to perform backups, which makes the device a sort of mini cloud of storage. It can also be brought to the office or customers in remote areas in case of data recovery after a disaster.
2) Asigra
The Asigra software provides WAN-optimized with the aim of helping customers to control their private or public clouds in a single interface. The tool allows better data protection and ease of filing. The software also manages the lifecycle of backup. The Asigra restructured recently, its policy of channels and now betting on more stable partnership - giving the same margins for small and large partners.
3) Axcient
The Axcient offers a hybrid model of cloud storage that includes a combination of storage and appliance-based storage service on the Internet. Thus, customers can back up data locally for fast recovery, or online, for added security. The SMB can buy the tools of Axcient capacity of 500GB to 10TB via partners. Are the channels that connect to the Internet and use the infrastructure in the cloud that is owned by Axcient.
4) Carbonite
The Carbonite is a pioneer in offering online backup and was the first to offer unlimited backup for the fixed price of $ 55 per year. The company also offers partnership and system manufacturers have a program that channels may be added Carbonite systems in your list of services. The software company backs up data automatically each time the information is modified with encryption.
5) Caring
The Caring Castor allows partners to build an infrastructure of cloud using only a USB memory plugged into one of several company servers. As work in the cluster, these servers automatically replicate each file stored in Castor. The company also offers a content router to distribute information within the cloud beaver, the ability to deliver files of the cloud and a filing function to desktop users who can not only store data and make them available without interrupting workflow .
6) Ctera
The Ctera provides an appliance that delivers all that is required for storage in the cloud in minutes. CloudPlug The device is based on Linux, plugged in, PC and router, allows backups are done automatically in the cloud, without additional software or hardware. The company also offers an appliance for storage on NAS that saves the data in the cloud.
7) Doyenz
The platform's virtualization Doyenz allows partners to build virtual appliances to low-cost disaster recovery, failures or data migration. The company allows it to be built and tested virtual appliances using VMware ESXi software, which can be deployed in minutes if used in conjunction with companies with Savvis and Rackspace. Customers pay the equivalent of one hour consulting rate of the partner, which gives the channel a continuous source of revenue.
8) Efolder
The Efolder helps SMB-focused channel to be offered in the cloud storage and archiving of e-mails. The company also has an offer hybrid cloud and local, which includes an appliance that uses local disk for fast recovery, but stores information in the cloud for remote backup. Last year, he acquired the eFolder the DoubleCheck, specializing in managing e-mail and security, hoping to combine storage, storage and security of e-mail in an indirect offer to the market.
9) EMC
The offer of EMC Mozy for online backup, which was bought in 2007, follows one of the most popular cloud. At the end of 2008, EMC Mozy combined with Pi, a specialist in personal information management, to create a new subsidiary, Decho. The Decho focuses on providing a platform on which to base the construction of storage in the cloud and other services, with special focus on storing and managing personal data.
10) i365
The i365, a subsidiary of Seagate, working with channel partners and managed service to help customers to have a storage infrastructure in the cloud. The company's offer consists of a myriad of partner services in the cloud storage, data protection, storage of e-mails, ediscovery and tools for restoration and data migration. The bet more i365 is new technology that allows software developers to install their applications directly into the cloud storage of i365.
11) IBM IBM service called Smart Business Storage Cloud is a private cloud that supports multiple petabytes of data and billions of files. It is based on IBM's blade servers and storage technology XIV. The service allows companies seams a local cloud storage managed by IBM or a backup data center at IBM. IBM also plans to build a public cloud storage.
12) IntronA
IntronA offers its online backup tool for partners interested in selling it with its own brand. With functionality that ensures that only data changes are stored, the tool also has functions ready for adherence to government regulations. In addition, it also supports backup, storage and file recovery Exchange. The channels can guarantee commission and revenue continued to win new customers for the company or can offer the services of IntronA as part of its own portfolio.
13) Mezeo Software
The Mezeo created software that enables IT organizations to create services cloud storage to their customers. Platform Mezeo Cloud Storage includes a web application, a native client for Windows desktop and native applications for iPhone, BlackBerry and Windows Mobile. With the platform, partners can offer sharing, collaboration, file labeling (tagging), and safety.
14) RELDATE
The technology RELDATE consolidating iSCSI, SAN, NAS and WAN on a single supply of storage, can be used by channels to help its customers build private cloud of storage. The appliance 9240i/RELvos allows customers to scale independently of the storage capacity of disk, replication, storage services and network performance without disrupting their applications. The appliance uses the operating system for virtualization of own RELDATE, Grass and has a controller for high performance SAS disk storage and integrated.
15) Robobak
The Robobak technology provides an automated backup for remote offices, which helps to deliver a supply channel of Storage-as-a-Service. Tool v9 Data Protection Robobak has the understanding of technologies such as backups and fighting duplicate data. In addition, it includes encryption and various tools for creating backup policies.
16) Symantec
Symantec has two offers to cloud up. For companies, the option is the Symantec Protection Network that can be resold by the channels to their customers. Part of the Symantec Hosted Services, the platform of cloud services the company can protect and manage the information stored on any device as and in formats such as e-mail or Messeges. For end users, Norton Online Backup allows up to five PCs in the same house have automatic backups of their data centers within the company, with the added ability to research and share these files.
17) Symform
The cloud storage Symform make a backup copy of the client and divided into blocks of 64MB, the mixing among them with AES-256 and breaking them back into 1MB chunks and adding a further 32 other pieces 1MB for redundancy. After that, the company sends these fragments to 96 storage centers scattered around the world. These cores are obtained in the internal structure of its customers, separating a small part of its storage capacity to be used as storage of data from other companies.
18) Vembu
The of Vembu StoreGrid, allowing channels to enter the market of the cloud with its own brand, now also offers storage services. These include services clustering and load balancing, and allows the data in the Amazon cloud to be replicated directly.
19) Zenith Infotech
The platform of the Zenith Infotech allows channels to offer managed services, help desk and virtual Disaster Recovery for SMB companies. The provision of backup and disaster recovery company was a pioneer in using a hybrid concept - local and cloud - including one for a local backup appliance and sends the data every 15 minutes for the cloud.
20) Zetta
Zetta's technology helps partners to build an infrastructure in the cloud that can replace the indoor storage of SMB companies. The supply of storage in the cloud of Zetta delivers high standard service as data snapshots, replication, and full redundancy without requiring additional hardware and acting like a traditional storage device. It also provides protection and data integrity, security and privacy at a price of 25 cents per gigabyte per month.
Wednesday, February 17, 2010
business model - 2 schools
Mr. G - M&A
2. Mr. E - Develop/sell products
Mr. G - Buy Products/technology
3. Mr. G - Buy good will
Mr. E - organically develop goodwill (downside - time to market)
4. Mr. E - pay salary in cash
Mr. G - Equity only compensation
5. Mr. G: News flash of relationship
6. Mr. G: Franchise model
7. Mr. G: lobby is one model by which grow - 60% of the business development
Wednesday, February 10, 2010
testlog - another test case management tool
testlog - yet another test case management tool
Free 90 day evaluation, then US$99 to purchase.
Supported on: Windows 2000, XP, 2003 Server, Vista and Windows 7.
Requirements:
32MB RAM, 10MB Disk space, Pentium CPU or higher, Internet Explorer 5.5 or higher. IIS (5.1 or higher) or Apache for web access (CGI) module.
Web Access module (optional): (Bummer....)
This is an optional module which allows access to a TestLog database over a web server. Requires TestLog. US$50 per user license.
Tuesday, February 09, 2010
Tuesday, February 02, 2010
ntfs-3g & FUSE
NTFS-3G is an open source cross-platform implementation of the Microsoft Windows NTFS file system with read-write support. NTFS-3G uses the FUSE file system interface, so it can run unmodified on many different operating systems. It has been reported to work with Linux, Mac OS X, FreeBSD, NetBSD, Solaris, BeOS, QNX and Haiku. It is licensed under either the GNU General Public License or a Commercial license. It is a partial fork of ntfsprogs and is under active maintenance and development.
| www.ntfs-3g.com |
Filesystem in Userspace (FUSE) is a loadable kernel module for Unix-like computer operating systems, that allows non-privileged users to create their own file systems without editing the kernel code. This is achieved by running the file system code in user space, while the FUSE module only provides a "bridge" to the actual kernel interfaces.
Released under the terms of the GNU General Public License and the GNU Lesser General Public License, FUSE is free software. The FUSE system was originally part of A Virtual Filesystem (AVFS), but has since split off into its own project on SourceForge.net.
FUSE is available for Linux, FreeBSD, NetBSD (as PUFFS), OpenSolaris, and Mac OS X. It was officially merged into the mainstream Linux kernel tree in kernel version 2.6.14.
Volume Snapshot Service (VSS) Shadow Copy
Shadow Copy (also called Volume Snapshot Service or VSS), is a technology included in Microsoft Windows that allows taking manual or automatic backup copies or snapshots of data, even if it has a lock, on a specific volume at a specific point in time over regular intervals. It is implemented as a Windows service called the Volume Shadow Copy service. A software VSS provider service is also included as part of Windows to be used by Windows applications. Shadow Copy technology does not require the file system to be NTFS, although it needs one NTFS volume for the shadow copies to be stored.
commands:
vssadmin list providers
vssadmin create shadow /for=c:
kboot & kexec
kboot is a proof-of-concept implementation of a Linux boot loader based on kexec. kboot uses a boot loader like LILO or GRUB to load a regular Linux kernel as its first stage. Then, the full capabilities of the kernel can be used to locate and to access the kernel to be booted.
kboot integrates the various components needed for a fully featured boot loader, and demonstrates their use. While the main focus is on basic technical functionality, kboot can serve as a starting point for customized boot environments offering additional features.
kboot is currently only tested on the ia32 (i386) platform. Some of its features include:
- supports most file systems and device drivers the Linux kernel supports
- transparent navigation in the file system of the booted system, including auto-mounting guided by /etc/fstab
- network configuration is either manual or with DHCP, including name resolution via /etc/hosts and DNS
- access to file systems via NFS
- access to files via HTTP, FTP, and TFTP
- inbound and outbound SSH (to and from the boot loader)
- no pretty user interface yet
- no integration of RAID, LVM, etc.
- needs to support more platforms, in particular amd64
- file name completion only works for commands and kernels
- does not boot legacy operating systems yet
kexec from wikipedia
kexec (kernel execution) is a mechanism of the Linux kernel that allows "live" booting of a new kernel over the currently running one. kexec skips the bootloader stage (hardware initialization phase by the firmware or BIOS) and directly loads the new kernel into memory, which starts executing immediately. This avoids the long times associated with a full reboot, and is useful on systems with high availability requirements, where minimizing downtime is of essence.
While feasible, there are two major challenges in implementing a mechanism such as kexec: first, the new kernel will overwrite the memory of the currently running one, while it is still executing. Second, the new kernel will usually expect all physical devices to be in a well-defined state, as they are after system reboot, when the BIOS (or firmware) resets them to a "sane" state. Bypassing a real reboot means devices may be in an unknown state, and the new kernel will have to recover from that.
Apache Lucene
Wikipedia:
Apache Lucene, while suitable for any application which requires full text indexing and searching capability, Lucene has been widely recognized for its utility in the implementation of Internet search engines and local, single-site searching.
At the core of Lucene's logical architecture is the idea of a document containing fields of text. This flexibility allows Lucene's API to be independent of the file format. Text from PDFs, HTML, Microsoft Word, and OpenDocument documents, as well as many others can all be indexed so long as their textual information can be extracted.
COW : Copy on Write
Copy-on-write (sometimes referred to as "COW") is an optimization strategy used in computer programming. The fundamental idea is that if multiple callers ask for resources which are initially indistinguishable, they can all be given pointers to the same resource. This function can be maintained until a caller tries to modify its "copy" of the resource, at which point a true private copy is created to prevent the changes becoming visible to everyone else. All of this happens transparently to the callers. The primary advantage is that if a caller never makes any modifications, no private copy need ever be created.
.....
The COW concept is also used in maintenance of instant snapshot on database servers like Microsoft SQL Server 2005. Instant snapshots preserve a static view of a database by storing a pre-modification copy of data when underlaying data are updated. Instant snapshots are used for testing uses or moment-dependent reports and should not be used to replace backups.
COW may also be used as the underlying mechanism for snapshots provided by logical volume management and Microsoft Volume Shadow Copy Service.
Sunday, January 31, 2010
iPad use possibilities
- eBooks
- ePrint outs (Map direction)
- Digital Photo Frame
- Replace Portable DVD Player
- Replace netbook
- skype phone
- Portable Internet Browser
- Product presentation in exec room / coffee shop
- Keynote speaker/teleprompter
- larger screen for video camera/ on location editing
- Music player
- Instant ON can replace laptop - check email
- Multi touch - for artist/painters/ white boarding
- Travel kit - replacement for laptop
Sunday, January 10, 2010
perl JSON API http
- sudo perl -MCPAN -e 'install JSON'
- sudo perl -MCPAN -e 'install JSON::XS'
- sudo perl -MCPAN -e 'install WWW::Mechanize'
#!/usr/bin/perl -w
use strict;
use JSON;
use LWP::Simple;
fetch_json_page("http://www.crunchbase.com/v/1/company/yousendit.js");
sub fetch_json_page
{
my ($json_url) = @_;
eval{
my $content = get($json_url);
my $json = new JSON;
# these are some nice json options to relax restrictions a bit:
my $json_text = $json->decode($content);
print $json_text->{phone_number} . "\n";
};
# catch crashes:
if($@){
print "[[JSON ERROR]] JSON parser crashed! $@\n";
}
}
Tuesday, January 05, 2010
mysql backup
MySql data file copy is a valid process for MyISAM engine!!
- Making Backups by Copying Table Files
- Making Delimited-Text File Backups
- Making Backups with mysqldump or mysqlhotcopy
- Making Incremental Backups by Enabling the Binary Log
- Making Backups Using Replication Slaves
- Recovering Corrupt Tables
- Making Backups Using a File System Snapshot
Saturday, November 21, 2009
perl <> mysql
#!/usr/bin/perl
use DBI;
use DBD::mysql;
#use strict;
$user="user";
$password="password";
$database="database";
$dsn="dbi:mysql:$database:localhost:3306";
$dbh = DBI->connect($dsn, $user, $password,
{ RaiseError => 1, AutoCommit => 0 });
$sth = $dbh->prepare("SELECT ID,Score1 FROM STUDENT_RECORD1");
$sth->execute();
while ( @row = $sth->fetchrow_array ) {
print "@row\n";
}
Wednesday, September 02, 2009
Thursday, August 20, 2009
MySql useful tips
"select
TABLE_NAME, COLUMN_NAME, COLUMN_DEFAULT,
IS_NULLABLE, DATA_TYPE,
CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH,
NUMERIC_PRECISION, NUMERIC_SCALE,
COLUMN_TYPE, COLUMN_KEY, EXTRA,
PRIVILEGES, COLUMN_COMMENT
from information_schema.columns
where
TABLE_SCHEMA = '
order by TABLE_NAME, COLUMN_NAME "
> tbl
select TABLE_NAME, TABLE_ROWS from information_schema.TABLES where TABLE_SCHEMA = '
Monday, August 17, 2009
Address validation service
- Address Validation (Makes sure the suite number is input - else throws error)
- ZIP, Geo code, phone,
- List of streets in zip
- real estate data
- house numbers on street
- Zip codes in radius
Sunday, August 16, 2009
interesting lists / templates that can be converted to content
List of Forts in India
Pin Codes of Indian cities - map with GPS co-ordinates(?)
STD codes in India - With GPS
Railway Stations in India with GPS
Highways of Tamilnadu & India
Choleswara temples with gps location
List of spices (?) used in Tamil friends home(s) and what dish it is used, where to purchase, how much (tricky)
Tamilnadu transportation routes: example http://www.tn.gov.in/transport//routes/routes_salemghat.htm
bluetooth info
- Agere Systems
- Alcatel
- Atmel
- CSR
- Conexant
- Ericsson ROK 101 007/8
- GCT Semi
- Infineon
- Microtune / Transilica
- Motorola
- NewLogic
- Oki
- Parthus
- Philips
- Silicon Wave
- Spirea
- TI
- Vaishali
- XEMICS
- Zarlink
Here are the Bluetooth stacks
- Widcomm (Windows)
- Microsoft Windows stack (Windows)
- EtherMind stack (Windows)
- Toshiba stack (Windows)
- BlueSoleil (Windows)
- BlueZ (Linux)