HP MSA1000 storage works raid array 201723-B21 전단
제품 코드
201723-B21
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Executive Summary
Storage tiering once meant adding a complement of SATA disk as an intermediate storage tier between
high performance disk and nearline tape. Not any more. With the multiplicity of storage tiering options
now available expressed in both hardware and software, storage administrators have the ability to create
tiered storage environments that are optimized to their own applications and operational circumstances.
This paper explores these options and makes specific recommendations regarding deployment from the
highest to the lower tiers.
high performance disk and nearline tape. Not any more. With the multiplicity of storage tiering options
now available expressed in both hardware and software, storage administrators have the ability to create
tiered storage environments that are optimized to their own applications and operational circumstances.
This paper explores these options and makes specific recommendations regarding deployment from the
highest to the lower tiers.
Driving the Need for Tiered Storage
It has become something of a given for enterprise storage administrators that stored data volumes will
grow at an average rate of 50% per year. Rapid growth stresses both the storage systems that must
handle the increasing volume, and the administrators that must maintain application performance while
also dealing with new compliance and legal data retention imperatives. Applications and other factors
now driving growth include:
grow at an average rate of 50% per year. Rapid growth stresses both the storage systems that must
handle the increasing volume, and the administrators that must maintain application performance while
also dealing with new compliance and legal data retention imperatives. Applications and other factors
now driving growth include:
• Email and attachments (and the associated regulatory/legal retention requirements)
• The proliferation of multiple (and often unnecessarily redundant) copies of data
• ERP and CRM applications
• Data warehousing
• The proliferation of multiple (and often unnecessarily redundant) copies of data
• ERP and CRM applications
• Data warehousing
Beyond impacting storage, this growth overloads primary production storage subsystems and creates a
negative impact on application performance. Unfortunately, such is often the case when IT departments
are tasked with doing more with less and the prevailing perception is that raw storage is relatively
inexpensive on a cost per GB basis.
negative impact on application performance. Unfortunately, such is often the case when IT departments
are tasked with doing more with less and the prevailing perception is that raw storage is relatively
inexpensive on a cost per GB basis.